Browsing School of Materials Engineering (Articles) by Issue Date
Now showing items 61-80 of 560
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The influence of welding parameters and corrosive environment on the joint strength of resistance spot-welded mild steel sheets
(Universiti Malaya, 2009)In the present work, mild steel sheets consisting two batches were welded by resistance spot welding at different welding parameters and exposed under different environments. The 5% sodium chloride brine was used in the ... -
The influence of welding parameters and corrosive environment on the joint strength of resistance spot-welded mild steel sheets
(University of Malaya, 2009)In the present work, mild steel sheets consisting two batches were welded by resistance spot welding at different welding parameters and exposed under different environments. The 5% sodium chloride brine was used in the ... -
Microstructural study and differential scanning alorimetry analysis at elevated temperatures of uperheated as-cast A357 alloy
(University of Malaya, 2009)The microstructure of superheated as-cast A357 alloy has been analysed to study the solidification structures of α-Al dendrites, eutectic Si particles and intermetallic compounds at different sections of the specimen. The ... -
Study the properties of dense Hydroxyapatite - Extract from cow bone
(Malaysian Institute for Nuclear Technology Research, 2009)In this study, natural HA were extrated from clean cow bone by treatment with NaOH and heating at high temperature before ground into fine powder. The HA powder were than mixed together with binder for several hours. Dense ... -
Oxidation behavior of SAE-1053 alloy in presence of seawater
(INSInet Publication, 2009-01)The oxidation behavior of steel SAE-1053 alloy were investigated in presence of seawater at atmospheric condition. The rate of corrosion was varied with the water movements and the aeration. The scale morphologies were ... -
Simultaneous extraction and separation of Cu(II), Zn(II), Fe(III) and Ni(II) by polystyrene microcapsules coated with Cyanex 272
(Elsevier B.V, 2009-02)The preparation of polystyrene microcapsules coated with Cyanex 272 (MC-Xs) have been investigated and simultaneous extraction and separation behavior of Cu(II), Zn(II), Fe(III) and Ni(II) in both batch and packed column ... -
Studies on mechanical alloying of Copper-Tungsten Carbide composite for spot welding electrode
(Springer New York, 2009-02-27)This article presents a study on the properties and performance of copper-based composite reinforced with recycled tungsten carbide powder as spot welding electrode. The copper-tungsten carbide composite electrode was ... -
Extraction and separation of Cu(II), Ni(II) and Zn(II) by sol-gel silica immobilized with Cyanex 272
(Elsevier B.V., 2009-03)The extraction and separation of Cu(II), Ni(II) and Zn(II) from aqueous sulfate-acetate solution were carried out using solid phase sol-gel silica containing immobilized Cyanex 272 {bis(2,4,4-trimethylpentyl)phosphinic ... -
Synthesis of sol-gel silica chemically bonded with cyanex 272 for the removal of Cu(II), Ni(II), and Zn(II)
(Springer Netherlands, 2009-05)This article reported on the synthesis of SSCBB, a new solid-phase, sol-gel silica chemically bonded with [bis (2,4,4-trimethylpentyl) phosphinate], (BTMPP, anion of Cyanex 272) prepared with a sol-gel method, and its ... -
Crystal structure of single phase and low sintering temperature of α-cordierite synthesized from talc and kaolin
(Elsevier B.V., 2009-08)Cordierite body with the formulation of 2.8MgO·1.5Al2O3·5SiO2 was prepared from talc and kaolin as the basic raw materials. Following glass crystallization technique the glass powder was successfully heat treated at 900 ... -
Studies on mechanical alloying of copper-tungsten carbide composite for spot welding electrode
(Springer New York, 2009-12)This article presents a study on the properties and performance of copper-based composite reinforced with recycled tungsten carbide powder as spot welding electrode. The copper-tungsten carbide composite electrode was ... -
Characterization of Cu2O thin films with addition of additive prepared by sol-gel spin coating process
(Universiti Putra Malaysia, 2010)Cuprous Oxide (Cu2O) thin films were formed onto indium tin oxide (ITO) coated glass substrate by sol-gel spin coating technique using different additives namely polyethylene glycol and ethylene glycol. It was found that ... -
Paints based on waste expanded polystyrene
(Smithers Rapra Technology, 2010)A formula for making paint was developed using waste expanded polystyrene foam (EPS) as a binder. This method replaces the alkyd resin in most commercial paint, which is derived from the byproducts of refi ning crude oil. ... -
Microstructure and microhardness properties of Fe-Cr-Al2O3 composites
(Universiti Putra Malaysia (UPM), 2010)The requirement for high performance materials of high wear and corrosion resistance lead to an increasing interest in ferrous matrix composites. Metal matrix composite of iron-chromium reinforced with alumina was fabricated ... -
Effect of polyethylene-grafted maleic anhydride (PE-g-MAH) on properties of low density polyethylene/eggshell powder (LDPE/ESP) composites
(Taylor & Francis Group, LLC., 2010-01-04)The effect of polyethylene-grafted maleic anhydride (PE-g-MAH) on the tensile properties, morphology and thermal properties of low-density polyethylene (LDPE)/eggshell powder (ESP) composites was studied. LDPE/ESP composites ... -
The effect of waste office white paper content and size on the mechanical and thermal properties of low-density polyethylene (LDPE) composites
(Taylor & Francis, 2010-01-07)The effect of waste office white paper (WOWP) loading and size on mechanical properties, morphology and thermal properties of LDPE/WOWP composites were investigated. The results showed that increasing of WOWP loading has ... -
Effect of melting temperatures on the crystallization and densification of 2.8MgO•1.5Al2O3•5SiO2 glass-ceramic synthesized from mainly talc and kaolin
(Elsevier B. V., 2010-02-03)Single phase α-cordierite with low sintering temperature was produced from 2.8MgO·1.5Al2O3·5SiO2 chemical formulation using mainly talc and kaolin. The effect of melting temperature to the densification, crystallization ... -
Comparison of dynamic mechanical properties of non-superheated and superheated A357 alloys
(Slovak Academy of Sciences, 2010-03-01)The influence of superheat treatment on the microstructure and dynamic mechanical properties of A357 alloys has been investigated. The study of microstructure was performed by optical microscope. Dynamic mechanical ... -
Determination of crystal changes on sodium cobaltite (NaCo 2O4) by Reitveld analysis as a suitability function in thermoelectric materials
(American Institute of Physics, 2010-03-11)Sodium Cobaltite, NaCo2O4 has been studied extensively as a new thermoelectric material. The cobalt oxide position in each sodium unit cell may determine the power produced by this type of thermoelectric materials. In this ...