Publisher: Springer-Verlag (Total: 2626 journals)

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Showing 1 - 200 of 2626 Journals sorted alphabetically
3D Printing in Medicine     Open Access   (Followers: 5)
3D Research     Hybrid Journal   (Followers: 21, SJR: 0.222, CiteScore: 1)
4OR: A Quarterly J. of Operations Research     Hybrid Journal   (Followers: 13, SJR: 0.825, CiteScore: 1)
AAPS J.     Hybrid Journal   (Followers: 31, SJR: 1.118, CiteScore: 4)
AAPS PharmSciTech     Hybrid Journal   (Followers: 9, SJR: 0.752, CiteScore: 3)
Abdominal Radiology     Hybrid Journal   (Followers: 22, SJR: 0.866, CiteScore: 2)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 4, SJR: 0.439, CiteScore: 0)
aBIOTECH : An Intl. J. on Plant Biotechnology and Agricultural Sciences     Hybrid Journal   (Followers: 2)
Academic Psychiatry     Full-text available via subscription   (Followers: 31, SJR: 0.53, CiteScore: 1)
Academic Questions     Hybrid Journal   (Followers: 9, SJR: 0.106, CiteScore: 0)
Accreditation and Quality Assurance: J. for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 34, SJR: 0.316, CiteScore: 1)
Acoustical Physics     Hybrid Journal   (Followers: 12, SJR: 0.359, CiteScore: 1)
Acoustics Australia     Hybrid Journal   (Followers: 2, SJR: 0.232, CiteScore: 1)
Acta Analytica     Hybrid Journal   (Followers: 7, SJR: 0.367, CiteScore: 0)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1, SJR: 0.675, CiteScore: 1)
Acta Biotheoretica     Hybrid Journal   (Followers: 3, SJR: 0.284, CiteScore: 1)
Acta Diabetologica     Hybrid Journal   (Followers: 19, SJR: 1.587, CiteScore: 3)
Acta Endoscopica     Hybrid Journal   (Followers: 1)
acta ethologica     Hybrid Journal   (Followers: 4, SJR: 0.769, CiteScore: 1)
Acta Geochimica     Hybrid Journal   (Followers: 8, SJR: 0.24, CiteScore: 1)
Acta Geodaetica et Geophysica     Hybrid Journal   (Followers: 3, SJR: 0.305, CiteScore: 1)
Acta Geophysica     Hybrid Journal   (Followers: 11, SJR: 0.312, CiteScore: 1)
Acta Geotechnica     Hybrid Journal   (Followers: 7, SJR: 1.588, CiteScore: 3)
Acta Informatica     Hybrid Journal   (Followers: 5, SJR: 0.517, CiteScore: 1)
Acta Mathematica     Hybrid Journal   (Followers: 12, SJR: 7.066, CiteScore: 3)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2, SJR: 0.452, CiteScore: 1)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 6, SJR: 0.379, CiteScore: 1)
Acta Mathematica Vietnamica     Hybrid Journal   (SJR: 0.27, CiteScore: 0)
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal   (SJR: 0.208, CiteScore: 0)
Acta Mechanica     Hybrid Journal   (Followers: 25, SJR: 1.04, CiteScore: 2)
Acta Mechanica Sinica     Hybrid Journal   (Followers: 5, SJR: 0.607, CiteScore: 2)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 9, SJR: 0.576, CiteScore: 2)
Acta Meteorologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.638, CiteScore: 1)
Acta Neurochirurgica     Hybrid Journal   (Followers: 7, SJR: 0.822, CiteScore: 2)
Acta Neurologica Belgica     Hybrid Journal   (Followers: 3, SJR: 0.376, CiteScore: 1)
Acta Neuropathologica     Hybrid Journal   (Followers: 5, SJR: 7.589, CiteScore: 12)
Acta Oceanologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.334, CiteScore: 1)
Acta Physiologiae Plantarum     Hybrid Journal   (Followers: 4, SJR: 0.574, CiteScore: 2)
Acta Politica     Hybrid Journal   (Followers: 19, SJR: 0.605, CiteScore: 1)
Activitas Nervosa Superior     Hybrid Journal   (SJR: 0.147, CiteScore: 0)
Adaptive Human Behavior and Physiology     Hybrid Journal   (Followers: 1)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 9, SJR: 0.103, CiteScore: 0)
ADHD Attention Deficit and Hyperactivity Disorders     Hybrid Journal   (Followers: 28, SJR: 0.72, CiteScore: 2)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 11)
Administration and Policy in Mental Health and Mental Health Services Research     Partially Free   (Followers: 20, SJR: 1.005, CiteScore: 2)
Adolescent Research Review     Hybrid Journal   (Followers: 2)
Adsorption     Hybrid Journal   (Followers: 5, SJR: 0.703, CiteScore: 2)
Advanced Composites and Hybrid Materials     Hybrid Journal  
Advanced Fiber Materials     Full-text available via subscription  
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 4, SJR: 0.698, CiteScore: 1)
Advances in Astronautics Science and Technology     Hybrid Journal  
Advances in Atmospheric Sciences     Hybrid Journal   (Followers: 42, SJR: 0.956, CiteScore: 2)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 23, SJR: 0.812, CiteScore: 1)
Advances in Contraception     Hybrid Journal   (Followers: 3)
Advances in Data Analysis and Classification     Hybrid Journal   (Followers: 57, SJR: 1.09, CiteScore: 1)
Advances in Gerontology     Partially Free   (Followers: 8, SJR: 0.144, CiteScore: 0)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 36, SJR: 1.64, CiteScore: 2)
Advances in Manufacturing     Hybrid Journal   (Followers: 5, SJR: 0.475, CiteScore: 2)
Advances in Neurodevelopmental Disorders     Hybrid Journal   (Followers: 2)
Advances in Operator Theory     Hybrid Journal   (Followers: 4)
Advances in Polymer Science     Hybrid Journal   (Followers: 50, SJR: 1.04, CiteScore: 3)
Advances in Therapy     Hybrid Journal   (Followers: 5, SJR: 1.075, CiteScore: 3)
Advances in Traditional Medicine     Hybrid Journal   (Followers: 4)
Adversity and Resilience Science : J. of Research and Practice     Hybrid Journal   (Followers: 3)
Aegean Review of the Law of the Sea and Maritime Law     Hybrid Journal   (Followers: 9)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2, SJR: 0.517, CiteScore: 1)
Aerobiologia     Hybrid Journal   (Followers: 4, SJR: 0.673, CiteScore: 2)
Aerosol Science and Engineering     Hybrid Journal  
Aerospace Systems     Hybrid Journal   (Followers: 1)
Aerotecnica Missili & Spazio : J. of Aerospace Science, Technologies & Systems     Hybrid Journal  
Aesthetic Plastic Surgery     Hybrid Journal   (Followers: 12, SJR: 0.825, CiteScore: 1)
Affective Science     Hybrid Journal   (Followers: 2)
African Archaeological Review     Hybrid Journal   (Followers: 20, SJR: 0.862, CiteScore: 1)
Afrika Matematika     Hybrid Journal   (Followers: 3, SJR: 0.235, CiteScore: 0)
Ageing Intl.     Hybrid Journal   (Followers: 8, SJR: 0.39, CiteScore: 1)
Aggiornamenti CIO     Hybrid Journal   (Followers: 1)
Aging Clinical and Experimental Research     Hybrid Journal   (Followers: 3, SJR: 0.67, CiteScore: 2)
Agricultural Research     Hybrid Journal   (Followers: 7, SJR: 0.276, CiteScore: 1)
Agriculture and Human Values     Open Access   (Followers: 15, SJR: 1.173, CiteScore: 3)
Agroforestry Systems     Open Access   (Followers: 20, SJR: 0.663, CiteScore: 1)
Agronomy for Sustainable Development     Open Access   (Followers: 19, SJR: 1.864, CiteScore: 6)
AI & Society     Hybrid Journal   (Followers: 9, SJR: 0.227, CiteScore: 1)
AIDS and Behavior     Hybrid Journal   (Followers: 18, SJR: 1.792, CiteScore: 3)
Air Quality, Atmosphere & Health     Hybrid Journal   (Followers: 7, SJR: 0.862, CiteScore: 3)
Akupunktur & Aurikulomedizin     Full-text available via subscription   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 7, SJR: 0.531, CiteScore: 0)
Algebra Universalis     Hybrid Journal   (Followers: 2, SJR: 0.583, CiteScore: 1)
Algebras and Representation Theory     Hybrid Journal   (Followers: 1, SJR: 1.095, CiteScore: 1)
Algorithmica     Hybrid Journal   (Followers: 9, SJR: 0.56, CiteScore: 1)
Allergo J.     Full-text available via subscription   (Followers: 2, SJR: 0.234, CiteScore: 0)
Allergo J. Intl.     Hybrid Journal   (Followers: 2)
Alpine Botany     Hybrid Journal   (Followers: 5, SJR: 1.11, CiteScore: 3)
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 2)
AMBIO     Hybrid Journal   (Followers: 9, SJR: 1.569, CiteScore: 4)
American J. of Cardiovascular Drugs     Hybrid Journal   (Followers: 17, SJR: 0.951, CiteScore: 3)
American J. of Community Psychology     Hybrid Journal   (Followers: 32, SJR: 1.329, CiteScore: 2)
American J. of Criminal Justice     Hybrid Journal   (Followers: 9, SJR: 0.772, CiteScore: 1)
American J. of Cultural Sociology     Hybrid Journal   (Followers: 21, SJR: 0.46, CiteScore: 1)
American J. of Dance Therapy     Hybrid Journal   (Followers: 9, SJR: 0.181, CiteScore: 0)
American J. of Potato Research     Hybrid Journal   (Followers: 3, SJR: 0.611, CiteScore: 1)
American J. of Psychoanalysis     Hybrid Journal   (Followers: 22, SJR: 0.314, CiteScore: 0)
American Sociologist     Hybrid Journal   (Followers: 16, SJR: 0.35, CiteScore: 0)
Amino Acids     Hybrid Journal   (Followers: 7, SJR: 1.135, CiteScore: 3)
AMS Review     Partially Free   (Followers: 4)
Analog Integrated Circuits and Signal Processing     Hybrid Journal   (Followers: 11, SJR: 0.211, CiteScore: 1)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 6, SJR: 0.536, CiteScore: 1)
Analysis in Theory and Applications     Hybrid Journal   (Followers: 1)
Analysis of Verbal Behavior     Hybrid Journal   (Followers: 6)
Analytical and Bioanalytical Chemistry     Hybrid Journal   (Followers: 32, SJR: 0.978, CiteScore: 3)
Anatomical Science Intl.     Hybrid Journal   (Followers: 3, SJR: 0.367, CiteScore: 1)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 3, SJR: 2.177, CiteScore: 5)
Animal Cognition     Hybrid Journal   (Followers: 23, SJR: 1.389, CiteScore: 3)
Annales françaises de médecine d'urgence     Hybrid Journal   (Followers: 1, SJR: 0.192, CiteScore: 0)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3, SJR: 1.097, CiteScore: 2)
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4, SJR: 0.438, CiteScore: 0)
Annali dell'Universita di Ferrara     Hybrid Journal   (SJR: 0.429, CiteScore: 0)
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1, SJR: 1.197, CiteScore: 1)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 19, SJR: 1.042, CiteScore: 3)
Annals of Combinatorics     Hybrid Journal   (Followers: 4, SJR: 0.932, CiteScore: 1)
Annals of Data Science     Hybrid Journal   (Followers: 13)
Annals of Dyslexia     Hybrid Journal   (Followers: 11, SJR: 0.85, CiteScore: 2)
Annals of Finance     Hybrid Journal   (Followers: 37, SJR: 0.579, CiteScore: 1)
Annals of Forest Science     Hybrid Journal   (Followers: 7, SJR: 0.986, CiteScore: 2)
Annals of Functional Analysis     Hybrid Journal   (Followers: 4)
Annals of Global Analysis and Geometry     Hybrid Journal   (Followers: 1, SJR: 1.228, CiteScore: 1)
Annals of Hematology     Hybrid Journal   (Followers: 15, SJR: 1.043, CiteScore: 2)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 14, SJR: 0.413, CiteScore: 1)
Annals of Microbiology     Hybrid Journal   (Followers: 13, SJR: 0.479, CiteScore: 2)
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 4, SJR: 0.687, CiteScore: 2)
Annals of Operations Research     Hybrid Journal   (Followers: 11, SJR: 0.943, CiteScore: 2)
Annals of Ophthalmology     Hybrid Journal   (Followers: 14)
Annals of PDE     Hybrid Journal  
Annals of Regional Science     Hybrid Journal   (Followers: 9, SJR: 0.614, CiteScore: 1)
Annals of Software Engineering     Hybrid Journal   (Followers: 13)
Annals of Solid and Structural Mechanics     Hybrid Journal   (Followers: 11, SJR: 0.239, CiteScore: 1)
Annals of Surgical Oncology     Hybrid Journal   (Followers: 19, SJR: 1.986, CiteScore: 4)
Annals of Telecommunications     Hybrid Journal   (Followers: 8, SJR: 0.223, CiteScore: 1)
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1, SJR: 1.495, CiteScore: 1)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5, SJR: 0.834, CiteScore: 2)
Apidologie     Hybrid Journal   (Followers: 5, SJR: 1.22, CiteScore: 3)
APOPTOSIS     Hybrid Journal   (Followers: 9, SJR: 1.424, CiteScore: 4)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 3, SJR: 0.294, CiteScore: 1)
Applications of Mathematics     Hybrid Journal   (Followers: 3, SJR: 0.602, CiteScore: 1)
Applied Biochemistry and Biotechnology     Hybrid Journal   (Followers: 42, SJR: 0.571, CiteScore: 2)
Applied Biochemistry and Microbiology     Hybrid Journal   (Followers: 20, SJR: 0.21, CiteScore: 1)
Applied Categorical Structures     Hybrid Journal   (Followers: 4, SJR: 0.49, CiteScore: 0)
Applied Composite Materials     Hybrid Journal   (Followers: 53, SJR: 0.58, CiteScore: 2)
Applied Entomology and Zoology     Partially Free   (Followers: 7, SJR: 0.422, CiteScore: 1)
Applied Geomatics     Hybrid Journal   (Followers: 3, SJR: 0.733, CiteScore: 3)
Applied Geophysics     Hybrid Journal   (Followers: 11, SJR: 0.488, CiteScore: 1)
Applied Intelligence     Hybrid Journal   (Followers: 15, SJR: 0.6, CiteScore: 2)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4, SJR: 0.319, CiteScore: 1)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 10, SJR: 0.886, CiteScore: 1)
Applied Mathematics - A J. of Chinese Universities     Hybrid Journal   (Followers: 1, SJR: 0.17, CiteScore: 0)
Applied Mathematics and Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.461, CiteScore: 1)
Applied Microbiology and Biotechnology     Hybrid Journal   (Followers: 71, SJR: 1.182, CiteScore: 4)
Applied Physics A     Hybrid Journal   (Followers: 11, SJR: 0.481, CiteScore: 2)
Applied Physics B: Lasers and Optics     Hybrid Journal   (Followers: 27, SJR: 0.74, CiteScore: 2)
Applied Psychophysiology and Biofeedback     Hybrid Journal   (Followers: 8, SJR: 0.519, CiteScore: 2)
Applied Research in Quality of Life     Hybrid Journal   (Followers: 12, SJR: 0.316, CiteScore: 1)
Applied Solar Energy     Hybrid Journal   (Followers: 21, SJR: 0.225, CiteScore: 0)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 6, SJR: 0.542, CiteScore: 1)
Aquaculture Intl.     Hybrid Journal   (Followers: 26, SJR: 0.591, CiteScore: 2)
Aquarium Sciences and Conservation     Hybrid Journal   (Followers: 2)
Aquatic Ecology     Hybrid Journal   (Followers: 38, SJR: 0.656, CiteScore: 2)
Aquatic Geochemistry     Hybrid Journal   (Followers: 3, SJR: 0.591, CiteScore: 1)
Aquatic Sciences     Hybrid Journal   (Followers: 14, SJR: 1.109, CiteScore: 3)
Arabian J. for Science and Engineering     Hybrid Journal   (Followers: 5, SJR: 0.303, CiteScore: 1)
Arabian J. of Geosciences     Hybrid Journal   (Followers: 2, SJR: 0.319, CiteScore: 1)
Archaeological and Anthropological Sciences     Hybrid Journal   (Followers: 24, SJR: 1.052, CiteScore: 2)
Archaeologies     Hybrid Journal   (Followers: 13, SJR: 0.224, CiteScore: 0)
Archiv der Mathematik     Hybrid Journal   (Followers: 1, SJR: 0.725, CiteScore: 1)
Archival Science     Hybrid Journal   (Followers: 70, SJR: 0.745, CiteScore: 2)
Archive for History of Exact Sciences     Hybrid Journal   (Followers: 7, SJR: 0.186, CiteScore: 1)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 3, SJR: 0.909, CiteScore: 1)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (SJR: 3.93, CiteScore: 3)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 6, SJR: 0.79, CiteScore: 2)
Archives and Museum Informatics     Hybrid Journal   (Followers: 181, SJR: 0.101, CiteScore: 0)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 6, SJR: 1.41, CiteScore: 5)
Archives of Dermatological Research     Hybrid Journal   (Followers: 7, SJR: 1.006, CiteScore: 2)
Archives of Environmental Contamination and Toxicology     Hybrid Journal   (Followers: 14, SJR: 0.773, CiteScore: 2)
Archives of Gynecology and Obstetrics     Hybrid Journal   (Followers: 19, SJR: 0.956, CiteScore: 2)
Archives of Microbiology     Hybrid Journal   (Followers: 10, SJR: 0.644, CiteScore: 2)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 10, SJR: 1.146, CiteScore: 2)
Archives of Osteoporosis     Hybrid Journal   (Followers: 2, SJR: 0.71, CiteScore: 2)
Archives of Sexual Behavior     Hybrid Journal   (Followers: 11, SJR: 1.493, CiteScore: 3)
Archives of Toxicology     Hybrid Journal   (Followers: 19, SJR: 1.541, CiteScore: 5)
Archives of Virology     Hybrid Journal   (Followers: 5, SJR: 0.973, CiteScore: 2)
Archives of Women's Mental Health     Hybrid Journal   (Followers: 18, SJR: 1.274, CiteScore: 3)
Archivio di Ortopedia e Reumatologia     Hybrid Journal  
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2, SJR: 0.946, CiteScore: 3)
ArgoSpine News & J.     Hybrid Journal  
Argumentation     Hybrid Journal   (Followers: 6, SJR: 0.349, CiteScore: 1)
Arid Ecosystems     Hybrid Journal   (Followers: 3, SJR: 0.2, CiteScore: 0)
Arkiv för Matematik     Hybrid Journal   (Followers: 1, SJR: 0.766, CiteScore: 1)
arktos : The J. of Arctic Geosciences     Hybrid Journal  
Arnold Mathematical J.     Hybrid Journal   (Followers: 1, SJR: 0.355, CiteScore: 0)
Arthropod-Plant Interactions     Hybrid Journal   (Followers: 2, SJR: 0.839, CiteScore: 2)
Arthroskopie     Hybrid Journal   (Followers: 1, SJR: 0.131, CiteScore: 0)

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Similar Journals
Journal Cover
Advanced Composites and Hybrid Materials
Number of Followers: 0  
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 2522-0128 - ISSN (Online) 2522-0136
Published by Springer-Verlag Homepage  [2626 journals]
  • Investigating the effects of UV light and moisture ingression on
           low-impact resistance of three different carbon fiber–reinforced
    • Abstract: In this article, the effects of ultraviolet light (UV) and moisture exposure on the low-velocity impact behavior of three different carbon fiber (CF) laminate composites (unidirectional fibers, plain weave woven fibers, and non-crimp fibers (NCF)) are reported based on the experimental observations. The composite laminate was fabricated by vacuum bagging method following the manufacturing specifications with symmetric and asymmetric stacking, and then the test coupons were extracted for impact testing, C-scan, and surface characterization studies before and after UV light and moisture exposures. A low-velocity impact test was carried out to evaluate the damage resistance and tolerance of the laminate specimens. The test outcomes uncovered that the NCF laminates were far predominant in load-carrying capacity than the woven and unidirectional laminates, with the NCF-asymmetric (NCF-NS) laminate exhibiting the greater load-carrying capacity of 3017.7 kN/m and impact energy of 7.07 kJ/m (NCF-NS). The NCF-symmetric (NCF-S) laminate showing impact energy of 7.0 kJ/m and load-carrying capacity of 2886.8 kN/m with some decrease after UV and moisture exposure for both cases. The ultrasonic C-scan revealed that NCF laminates, both NCF-S and NCF-NS, have the least penetration indicating greater out of plane fracture toughness and damage tolerance. The NCF-NS laminate has the least damage area (33.35 mm2) and dent depth (0.12 mm) as compared with other laminate studied here. The wettability of the panels was similar; however, the woven (baseline) panel showed the highest water contact angle (112°). After the UV and salt fog exposure, the contact angles of the composite panels were reduced between 66° and 58°. In addition, this study also reveals the effect of stacking sequence on the impact properties of the NCF composite laminate. Graphical abstract The present study focused on the effect of UV light and moisture exposure on the impact damage resistance of three different laminate composites. Photographic images of post-impact CF laminate composites damage area: a unidirectional, b woven, and c NCF
      PubDate: 2019-09-10
  • Combustion synthesis of N-doped three-dimensional graphene networks using
           graphene oxide–nitrocellulose composites
    • Abstract: We demonstrate a novel method to prepare high-quality and uniform nitrogen-doped, three-dimensional, graphene networks through combustion of graphene oxide (GO)–nitrocellulose composites. The N-doped 3D graphene networks have tunable porous morphology and the pore size can be controlled by adjusting the concentration of GO in the nitrocellulose matrix. This new method is a simple method to obtain nitrogen-doped graphene networks and has potential applications in energy storage and conversion, catalysis, and sensors. Graphical abstract
      PubDate: 2019-09-01
  • Carbon electrodes with double conductive networks for high-performance
           electrical double-layer capacitors
    • Abstract: Tremendous efforts have been devoted to develop the active materials for supercapacitor electrodes, but very few are focused on the improvement of the electrode material/electrolyte interfaces via protonic conductors. In this study, double conductive networks are constructed in powdery carbon electrodes by using sulfated zirconia as protonic conductor and acetylene black as electric conductor. The synergetic effect of protonic and electric double transport pathways enhances the electrode material/electrolyte interfaces, reduces diffusion distance of protons, and increases the electrode specific capacitance. Compared to the control electrode without protonic conductor, the electrode shows a specific capacitance with 21.0% increment. The proposed strategy may be a promising avenue for preparation of powdery carbon electrodes used in electrical double-layer capacitors. Graphical abstract Double conductive networks in powdery carbon electrodes constructed by sulfated zirconia as protonic conductor and acetylene black as electric conductor
      PubDate: 2019-09-01
  • Fabrication and characterization of polyphenylene sulfide composites with
           ultra-high content of carbon fiber fabrics
    • Abstract: In this study, polyphenylene sulfide (PPS) composite, which has ultra-high content of carbon fiber fabrics (CFF), was prepared from CFF and PPS nonwoven by a facile thermal-compressive method. The results show that the PPS composite composed of 80 wt% CFFs has optimal mechanical properties, where the tensile strength, fracture elongation, elastic modulus, flexural strength, flexural modulus, interlaminar shear strength, and impact strength reach to 1200.3 MPa, 20.3%, 25.7 GPa, 1305.6 MPa, 230.6 GPa, 110.3 MPa, and 348.6 KJ/m2, respectively. In addition, the volume resistivity, conductivity, and surface resistivity of the PPS composite with 80 wt% CFFs can reach to 1.3 × 10−2 Ω·cm, 74.9 S/cm, and 1.2 × 10−1 Ω·□ respectively. The increased interfacial layer and riveting effect between CFFs are responsible for outstanding structural stability and stress transformation, resulting in ultra-high strength and modulus of CFF/PPS composite, as well as the conductive performance. Graphical abstract Schematic diagram of failure mechanism and optical microscope images of cross sections of CFF/PPS composites.
      PubDate: 2019-09-01
  • Latent heat and thermal conductivity enhancements in polyethylene
           glycol/polyethylene glycol-grafted graphene oxide composites
    • Abstract: Although high-thermal conductivity fillers can enhance the thermal conductivity of organic phase change materials (PCMs), it is still difficult to simultaneously prevent the loss in latent heat. The realization of enhanced thermal conductivity without adversely affecting the latent heat of polymeric PCMs remains challenging. We report experimental results demonstrating that polyethylene glycol (PEG)-based PCM composites exhibit large latent heats beyond the expected values and significantly improved thermal conductivities. Latent heat and thermal conductivity enhancements are achieved by optimizing the interaction between the filler and PCM in the PEG/graphene oxide (GO) composites. PEG-grafted GO (PEG-g-GO) is synthesized and introduced into the PEG to regulate the interaction between the PEG base and GO. The result can be largely attributed to the enhanced GO dispersion and heightened mobility of the PEG chains. The grafted PEG in the PEG-g-GO acts as a plasticizer, leading to a considerable effect on the crystallization kinetics of the PEG in the composite PCMs, and thus the improved crystallizability. Graphical abstract Latent heat and thermal conductivity enhancements are achieved by optimizing the interaction between the filler and PCM in the PEG/GO composites.
      PubDate: 2019-09-01
  • A review of using reflective pavement materials as mitigation tactics to
           counter the effects of urban heat island
    • Abstract: Urban heat island (UHI) is a phenomenon which creates temperature distinction between cities and its ambient environment outside cities, which also increases the energy consumption of cooling during summer time. Paving surface materials account for a high proportion of cost in urban construction and contribute significantly to urban heat island. Solar-reflective materials used in paving surface alternative to traditionally absorptive materials can reduce high-temperature storage by daylight and release the storage at night. In this review, the reflective paving techniques and materials will be introduced with the analysis and description of the main thermal performance and existing developments as a tactic for effects’ mitigation of UHI. Furthermore, real applications and the market barrier of these materials will be summarized. The expectation is that reflective materials on the roadways have considerable influence in the temperature’s decrease in paved surfaces and ambient air during summertime, and they are proposed to be adopted especially in hot regions to retard certain influences of the urban heat island. Graphical abstract Fig. 5 Scheme of retro-reflective materials operating (source: Rossi, F., Pisello, A. L., Nicolini, A., Filipponi, M., & Palombo, M. (2014))
      PubDate: 2019-09-01
  • Hot rolling of MWCNTs reinforced Al matrix composites produced via spark
           plasma sintering
    • Abstract: Aluminum/CNT nanocomposite sheets, with appropriate dispersion and interfacial bonding, were fabricated by a combination of powder metallurgy, spark plasma sintering (SPS), and hot rolling. The effects of CNT content as well as plastic deformation, on the microstructure and mechanical properties of the obtained nanocomposite, were investigated. The composite reinforced by 0.5 wt.% CNTs showed an optimal dispersion of CNTs into the aluminum matrix after both SPS and hot rolling. Minimum CNT damage and minimum carbide formation were observed after hot rolling. The best comprehensive mechanical properties corresponded to the sheet of Al-0.5 wt.% CNT nanocomposite thanks to the strong interfacial bonding between Al and CNTs, full densification of the nanocomposites as well as the uniform dispersion of the CNTs into the aluminum matrix. Hardness measurements showed that the maximum hardness was obtained for sheets containing 1.5 wt.% CNTs in both the as-SPS and the as-hot rolled conditions. Load transfer, Orowan, and grain size strengthening mechanisms could affect the increase of strength as well as the combination of strength and ductility of the sheets of Al-CNT nanocomposites. Graphical abstract Aluminum/CNT nanocomposites were hot rolled without reinforcing damage. The optimal dispersion of 1.5% CNTs led to increased mechanical properties.
      PubDate: 2019-09-01
  • A multi-objective Gaussian process approach for optimization and
           prediction of carbonization process in carbon fiber production under
    • Abstract: During composite fiber production, carbon fibers are normally derived from polyacrylonitrile precursor. Carbonization, as a key step of this process, is significantly energy-consuming and costly, owing to its high temperature requirement. A cost-effective approach to optimize energy consumption during the carbonization is implementing predictive modeling techniques. In this article, a Gaussian process approach has been developed to predict the mechanical properties of carbon fibers in the presence of manufacturing uncertainties. The model is also utilized to optimize the fiber mechanical properties under a minimum energy consumption criterion and a range of process constraints. Finally, as the Young’s modulus and ultimate tensile strength of the fibers did not show an evident correlation, a multi-objective optimization approach was introduced to acquire the overall optimum condition of the process parameters. To estimate the trade-off between these material properties, the standard as well as an adaptive weighted sum method were applied. Results were summarized as design chart for potential applications by manufacturing process designers. Graphical abstract
      PubDate: 2019-09-01
  • Enhanced mechanical and tribological performance of PA66 nanocomposites
           containing 2D layered α-zirconium phosphate nanoplatelets with different
    • Abstract: Two-dimensional layered α-zirconium phosphate (ZrP) nanoplatelets with two distinguished sizes but similar aspect ratio were directly incorporated into polyamide 66 (PA66) by simple melt processing without using any surfactants. Through the electron microscopy analysis, the large ZrP nanoplatelets with ~ 1.33 μm in size and ~ 5.8 in aspect ratio exhibit a uniform dispersion in PA66 matrices at the filler loading up to 3 wt%, while the small ZrP nanoplatelets with an average size of ~ 230 nm and aspect ratio of ~ 6.2 tend to form large-scale aggregates in PA66 even at 1 wt% loading. Tensile testing results illustrate that the large ZrP nanoplatelets exhibit a better reinforcement effect in PA66 than the small ones. With the incorporation of 3 wt% large ZrP nanoplatelets, the PA66 nanocomposites exhibit an increase of ~ 10% in tensile modulus and ~ 14% in tensile strength as compared with the pure PA66. Pin-on-disc wear tests illustrate that the nanocomposites containing large ZrP nanoplatelets have better anti-wear properties than those prepared with small ZrP nanoplatelets. In specific, the PA66 nanocomposites containing 1 wt% large ZrP nanoplatelets show a ~ 43% decrease in friction coefficient and a ~ 59% reduction in the wear rate under the test condition of 40 N in load and 0.6 m/s in velocity. The mechanisms that are responsible for the mechanical and tribological enhancements in the PA66/ZrP nanocomposites have also been discussed. Graphical abstract 2D layered α-zirconium phosphate (ZrP) nanoplatelets with large size can effectively enhance mechanical and tribological properties of PA66 nanocomposites.
      PubDate: 2019-09-01
  • A new catalyst material from electrospun PVDF-HFP nanofibers by using
           magnetron-sputter coating for the treatment of dye-polluted waters
    • Abstract: Abstract In this study, polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP)–based nanofibers were produced by electrospinning technique on aluminum substrate and coated with magnetron sputtering technique by using Cu2O photocatalyst target material. Resulting materials were characterized by SEM, EDX, and UV diffuse reflectance spectroscopy. Photocatalytic activity of the material was tested against methylene blue decolorization under 105 W tungsten light bulb. Methylene blue concentration was followed up by UV visible spectrophotometer at 664 nm. Kinetic modeling of the photocatalytic reaction was found suitable to the first-order kinetics. Reaction rate constants were 0.0037, 0.0044, and 0.0050 min−1 respectively with corresponding half-life times of 187, 158, and 139 min. Thanks to the genuine design of the catalyst, it allowed easy removal of the material from the solution without any residue by simple tweezers which is a promising step for getting rid of heavy and low yield of filtration processes in the separation of particulate catalysts from the treated water. Graphical Abstract .
      PubDate: 2019-09-01
  • Gold nanoparticles immobilized on single-layer α-zirconium phosphate
           nanosheets as a highly effective heterogeneous catalyst
    • Abstract: Gold nanoparticles (Au NPs) were immobilized on single-layered α-zirconium phosphate (ZrP) nanosheets as a highly efficient heterogeneous catalyst. The nanoparticles were characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), X-ray photoelectric spectroscopy (XPS), UV–Vis spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) techniques. The characterizations showed that the Au NPs with a size distribution of 2.0 ± 1.0 nm were uniformly dispersed and immobilized on single-layer ZrP nanosheets. The supported AuNPs could serve as an effective catalyst for the reduction of 4-nitrophenol by sodium borohydride (NaBH4). Graphical abstract .
      PubDate: 2019-09-01
  • Reversible photo-controlled release of bovine serum albumin by
           azobenzene-containing cellulose nanofibrils-based hydrogel
    • Abstract: Development of biomass-based and some other sustainable biomedical materials is a key subject and effective approach to biomass high-value utilization. In this work, we used cellulose resources to develop a photoresponse hydrogel (PR-gel) by integrating 4arm-PEG and azobenzene into cellulose nanofibrils (CNFs). This novel PR-gel exhibited good mechanical strength (storage modulus over 103 Pa), structure stability, reversible recoverability between sustained step strain of 1% and 1000%, and excellent biocompatibility. Under UV irradiation (λ = 365 nm, 10 mW/cm2, 10 min), the azobenzene cross-linker in PR-gel as photoswitch can cause the trans-cis isomerism and a softening effect of the hydrogel, thus realized the photo-controlled release of bovine serum albumin (BSA) (5-fold higher release rate under UV light irradiation). This work provided a new approach to design cellulose-based photoresponsive hydrogels. It is also can expand the application of cellulose-based hydrogels and some other sustainable materials in the biomedical field. Graphical abstract Cellulose nanofibrils-4arm-polyethylene glycol-azobenzene (PR-gel) exhibited good mechanical strength, reversible recoverability, excellent biocompatibility, and reversible photoresponse for protein release.
      PubDate: 2019-09-01
  • Ambient temperature complete oxidation of carbon monoxide using hopcalite
           catalysts for fire escape mask applications
    • Abstract: Carbon monoxide (CO) is one of the most poisonous gases present in the atmosphere. It also called the silent killer of twenty-first century. CO is produced into the environment by incomplete combustion of carbon containing compounds. It causes lots of people die every year including the firefighters. The main aim of this work to find out the literature study of standard respiratory escape masks for ambient temperature CO oxidation purposes. The research under concern is applicable for developing respiratory protection systems for military, mining, and space devices. There are many catalysts which are active for this process under different conditions. Among these catalysts, the hopcalite (CuMnOx) is one of the best-known catalysts for low-temperature CO oxidation. It is a low-cost, easily available, and highly stable catalyst. The hopcalite catalyst is active for a longer time and would be tolerant of moisture and impurities in reacting gases. The catalyst surface and reacting gases forever play a key role in catalytic reactions. Hopcalite is an ideal catalyst for use in next-generation respiratory protection devices. Although there are numerous research papers present on this topic until now no one review are present for demanding this issue. So there is a space in this area; it has been made an attempt to seal this hole by this review. Graphical abstract Summary • To develop a standard fire escape masks for protection of respiratory systems in military, mining, and firefighting, etc.
      PubDate: 2019-09-01
  • A novel approach to the uniformly distributed carbon nanotubes with intact
           structure in aluminum matrix composite
    • Abstract: Abstract Achieving a uniform dispersion of carbon nanotubes (CNTs) in metal matrix composites (MMCs) is a vital prerequisite for enhancing the mechanical properties of the samples. In this work, a novel strategy called little by little (LbL) adding was successfully adopted in order to achieve a uniform dispersion of CNTs. The Al composite powders reinforced with different amounts of CNTs (1, 2, 3, and 5 wt.%) were consolidated by spark plasma sintering (SPS). Based on scanning electron microscopy (SEM) as well as Raman spectroscopy, individual and uniform dispersion of CNTs without any serious structural damage was achieved in Al matrix. In this regard, the relative intensity ratio (ID/IG) of the raw CNTs was around 0.85 and that of LbL composite was ~ 0.9, indicating that the CNT structure experienced very little damage during the applied method. As a result of the uniform dispersion, there was no drastic reduction in mechanical property (microhardness) of the LbL-composites with increasing CNT content. Based on the tribological tests, it was found that the dominant wear mechanism of the LbL composite is abrasive wear accompanied by adhesion wear. Moreover, for the reference composites, produced by conventional wet milling process, the dominant wear mechanism was severe adhesive. Graphical Abstract Novel strategy called little by little adding (LbL) was successfully adopted to achieve a uniform dispersion of CNTs in Al.
      PubDate: 2019-09-01
  • Green welding for various similar and dissimilar metals and alloys:
           present status and future possibilities
    • Abstract: Energy saving has become a priority for welding industry. This is due to the recent increase in energy demand and constraints in carbon emissions. Increasing environmental demands from governmental and customers strain the importance of reducing the environmental pollution while welding. Therefore, the minimum energy-oriented green welding process is must. Friction stir welding (FSW) is considered to be the most significant development in metal joining and is a “green” technology due to its energy efficiency, environment friendliness, and versatility. As compared to the conventional welding methods, FSW consumes considerably less energy. No shield gas or flux is used, thereby making the process environmentally friendly. No harmful gases are produced in FSW. Harmful gases adversely affect the surroundings. This creates health problems to persons carrying out welding and people living in nearby areas. Hence, there is a need to develop and use green welding techniques. An attempt has been made to study the present status and explore future possibilities in the field of FSW, so as to achieve the objectives of saving the electrical energy and protect the environment from pollution. Graphical abstract Friction stir welding process
      PubDate: 2019-09-01
  • Mechanical and wear behavior of Al 7075/Al 2 O 3 /SiC/mg metal matrix
           nanocomposite by liquid state process
    • Abstract: Hybrid composites with aluminum matrix and non-metallic reinforcements are identifying extensive applications in automobile, aircraft, and military industries due to their high strength-to-volume ratio, corrosion resistance, excellent machinability, wear resistance, high thermal conductivity, etc. Nanocomposite materials are usually selected for structural applications since they possess desirable association of mechanical properties. The hybrid metal matrix nanocomposite development has come to be the most crucial area of material science engineering. In the present study, the Al 7075 is reinforced with 1.0, 2.0, 3.0, and 4.0 wt.% of (Al2O3 + SiC) and 1 wt.% of magnesium (Mg) to manufacture the hybrid composite. Magnesium (Mg) is mainly used to increase the wettability of the nanocomposites. The present research is focused on determining the mechanical and wear properties of Al 7075 in the existence of Al2O3 (20–30 nm), SiC (50 nm), and magnesium (micro). The compositions are increased from 1 to 4 wt.%, and stir casting method are used for the fabrication of aluminum metal matrix nanocomposites. The mechanical characteristics of metal matrix composites such as tensile strength, compression strength, and hardness test are studied by carrying out experiments on the computerized universal testing machine and Vickers hardness equipment. The microhardness, compression strength, and tensile strength of aluminum 7075 alloy increases by incorporating Al2O3and SiC reinforcements. Wear analysis was done to examine the effect of SiC and Al2O3 ceramic particles using a pin on disc apparatus. Worn out areas of the specimens were analyzed by SEM, energy dispersive analysis X-ray (EDAX), and XRD analysis. Graphical abstract
      PubDate: 2019-09-01
  • Simultaneous optimization of elastic constants of laminated composites
           using artificial bee colony algorithm
    • Abstract: Multifunctional application of laminated composites requires multi-objective optimization of their characteristics. In this paper, the ply angles of laminated composites are determined in order to maximize the effective in-plane elastic constants simultaneously. These constants are determined by considering a representative small element of the laminated composite and imposing the conditions of uniformity of out-of-plane stresses and in-plane strains at orthotropic layer interfaces. Then, by combining the artificial bee colony algorithm and various multi-objective optimization methods, the optimal ply angles and the corresponding co-optimized constants are determined. The correctness and accuracy of the method is verified not only by providing a comparison with the existing results but also by solving a known problem. The results are presented and discussed, considering different multi-objective optimization problems. The results show that the increasing number of layers in the problem of simultaneous optimization of Young’s moduli not only does result in finding more Pareto optimal solutions in the feasible objective region but also shifts the Pareto frontier toward the utopia point. However, when the shear modulus optimization is engaged in the problem, using more than two layers only leads to obtaining more Pareto optimal answers. Graphical abstract
      PubDate: 2019-09-01
  • Mechanical properties and water absorption behavior of injection-molded
           wood fiber/carbon fiber high-density polyethylene hybrid composites
    • Abstract: High-density polyethylene (HDPE) has been widely used to make wood–plastic composites (WPC) in the past decades for building materials, automotive, packaging, and furniture industry. However, the relatively poor mechanical properties have limited the applications of WPC. To address this issue, this study introduced a small of amount of lightweight and high-strength carbon fiber (CF) into the WPC matrix, to make hybrid composites through a cost-effective direct injection molding process. This paper investigated the mechanical properties and water absorption behaviors of hybrid HDPE composites with wood fiber (WF) and CF. Compared with WPC with the same fiber loading, the hybrid composites had 40% increase in tensile strength and 253% increase in tensile modulus. The effects of water absorption on the mechanical properties of hybrid composites were interpreted with two competing mechanisms (i.e., interfacial bond weakening and fiber swelling). This study implies that adding a small amount of CF to WPC in direct injection molding would be another approach for enhancing the mechanical properties without additional operating cost. Graphical abstract
      PubDate: 2019-08-29
  • Microstructure and dielectric properties of Ba 0.6 Sr 0.4 TiO 3
           /(acrylonitrile-butadiene-styrene)-poly(vinylidene fluoride) composites
    • Abstract: Dielectric tunable composites are of importance to fabricate flexible electronic devices. However, the achievement of the desirable tunability is limited by the defects between polymer matrix and inorganic fillers, which results in high dielectric loss and low electric breakdown strength. In this contribution of Ba0.6Sr0.4TiO3/((acrylonitrile-butadiene-styrene)-(poly(vinylidene fluoride)) (BST/ABS-PVDF) composites, such limitation was overcome via surface-modifying fillers and a design of binary polymer matrix of ABS-PVDF. The ratio of ABS-PVDF matrix was initially optimized concerning microstructure and dielectric performances. The dielectric constant (from 13 to 27 at 1 kHz) and tunability (1.3 to 3.8% at 2 kV/mm) of BST/ABS-0.6PVDF were enhanced with BST content increasing from 10 to 40 vol%, while a low dielectric loss was maintained (~ 0.09 at 1 kHz). BST/ABS-0.6PVDF with 40 vol% of BST exhibit a tunability of 20% at 16 kV/mm which doubles the commonly reported values and provides great promises for the dielectric devices such as phase shifter, tunable capacitors, and tunable antenna. Graphical abstract The dielectric constant and tunability of Ba0.6Sr0.4TiO3/((acrylonitrile-butadiene-styrene)-(poly(vinylidene fluoride)) (BST/ABS-PVDF) can be enhanced via surface modification.
      PubDate: 2019-08-19
  • Immobilization of penicillin G acylase on a novel paramagnetic composite
           carrier with epoxy groups
    • Abstract: In this work, Fe3O4 particles were first prepared by a reversed microemulsion method, and then the prepared nanoparticles were modified with 3-(trimethoxysilyl) propyl methacrylate (KH-570), a silane coupling agent, to enhance the dispersibility and biocompatibility of Fe3O4 particles. To get the graft ratio quantitatively, and further achieve the maximum loading capacity of KH-570, the characterization method for the graft ratio (Gr) was systemically explored first; reformative silicon molybdenum chromogenic (RSMC) was designed and presented a good result. In addition, the influence of operation conditions on the graft ratio was investigated and optimized. Results showed the graft ratio of KH-570 on magnetic Fe3O4 nanoparticles arrived at 178.51% under optimal conditions. In addition, it displayed KH-570 grafted onto the surface of Fe3O4 nanoparticles successfully, and only one silicon hydroxyl was bonded on the surface of Fe3O4 nanoparticles under optimal modifications. Finally, a magnetic composite carrier was prepared by grafting glycidyl methacrylate (GMA) onto the surface of the modified nanoparticles. Further, the composite was used to immobilize penicillin G acylase (PGA); in addition, the effect of GMA dosage on enzyme activity (EA), enzyme activity recovery rate (EAR), and enzyme loading rate (ELR) was studied. It was found that when the amount of GMA was 9.0%, the EA, EAR, and ELR were 9208 U/g, 88 mg/g, and 64.08%, respectively. In addition, the immobilized PGA still possess superparamagnetism, which can be well recycled and reused. Graphical abstract
      PubDate: 2019-06-20
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
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