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International Journal of Material Science
   [6 followers]  Follow    
  This is an Open Access Journal Open Access journal
     ISSN (Print) 2226-4531 - ISSN (Online) 2226-4523
     Published by Science and Engineering Publishing Company Homepage  [47 journals]
  • The Improvement in Physical and Static Bending Properties of Woven Oil
           Palm Plywood

    • Abstract: The Improvement in Physical and Static Bending Properties of Woven Oil Palm Plywood
      Pages 112-116
      Author Norul Hisham HamidMicheal David HaleMohd Fitri Yazi
      The physical and static bending properties of woven oil palm plywood pre-treated with low molecular weight of phenol formaldehyde (LMWPF) were investigated using MS standard 1787: Part 6 and 10. The oil palm veneers were cut into three different split widths of 15, 20 and 25 mm; and manually woven into veneer sized of 40 cm2. The plywoods were fabricated into three different matrix layers of Type 1 (all three layer contained woven veneers), Type 2 (only core layer contained woven veneer) and Type 3 (face and back layers contained woven veneer). All plywood were made using a urea formaldehyde resin (UF) with spread rate of 200g/m2, pre-pressed for two minutes and hot pressed at 130 °C for 12 minutes. The results revealed that Type 1 plywood gave the lowest thickness swelling, while Type 3 gave the highest static bending properties.
      PubDate: 2014-09
  • Metal-induced Effect of Antimony Addition on Some Physico-chemical
           Properties of Se80Te20 Inorganic Glass

    • Abstract: Metal-induced Effect of Antimony Addition on Some Physico-chemical Properties of Se80Te20 Inorganic Glass
      Pages 104-111
      Author Shipra SaraswatS. D. Sharm
      Chalcogenide glasses are well known advanced functional materials for widely use in phase change optical recording technology. The present papers reports our novel research work regarding the metal-induced effects of Sb on some significant physico-chemical properties (coordination number, constraints, density, molar volume, cohesive energy, heat of atomization etc) of binary Se80Te20 glass. Our results indicate that there is a strong correlation between the structural modifications and significant variation in various physico-chemical parameters of parent glassy alloy after inclusion of Sb.
      PubDate: 2014-09
  • Severe Plastic Deformation Methods to Achieve Nanostructured Materials

    • Abstract: Severe Plastic Deformation Methods to Achieve Nanostructured Materials
      Pages 98-103
      Author Seyedhossein Mira
      Nanostructured materials possess interesting properties and the techniques for achieving them, have generated much interest in recent years. Severe Plastic Deformations (SPD) processes are among those techniques for generating bulk nanostructured materials; in this paper the major conventional SPD methods including High Pressure Torsion (HPT), Equal Channel Angular Pressing (ECAP), Accumulative Roll Bonding (ARB) and Constrained Groove Pressing (CGP) are reviewed. The most recent proposed SPD processes of Continuous High Pressure Torsion (CHPT) and Cone-Cone Method (CCM) are also presented. Finally, some applications of the SPD processed materials in the market are discussed.
      PubDate: 2014-09
  • Synthesis and Characterization of Poly (Vinyl Acetate)/MMT Nanocomposite
           Flame Retardant

    • Abstract: Synthesis and Characterization of Poly (Vinyl Acetate)/MMT Nanocomposite Flame Retardant
      Pages 90-97
      Author Prafulla SahooRamakanta SamalTrinath BiswalMamata Sah
      Current environmental benign and flame retardant poly (vinyl acetate) (PVAc)/montmorillonite (MMT) clay nanocomposites were prepared by emulsifier free emulsion technique in microwave (MW) oven. MMT clay was incorporated as additional filler in PVAc/MMT nanocomposites to improve the homogeneity of the ‘physical’ barrier, since clay produces silicon-oxy-carbide (Si–O–C) char on heating. The fine dispersion of the MMT and the interactions between PVAc and clay created significant improvement of the flame retardancy which has been evaluated using cone calorimeter. The presence of clay in PVAc/MMT nanocomposites was characterized with infrared (IR), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The fire retardancy of PVAc/MMT nanocomposites caused by the formation of Si–O–C char was characterized byscanning electron microscopy (SEM). The biodegradation property was tested by activated sludge water via water absorbency and was further confirmed from SEM for its better commercialization and ecofriendly nature.
      PubDate: 2014-09
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