Center of Excellence for Geopolymer and Green Technology (CEGEOGTECH) (Articles): Recent submissions
Now showing items 21-40 of 135
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Batu Reput filled recycled polypropylene eco-polymer composites
(American-Eurasian Network for Scientific Information, 2013)The effect of Batu Reput, which scientifically called as Dolomite mineral filler on the mechanical properties of recycled polypropylene (rPP) mixed using Z-blade mixer was examined. This research has been done to investigate ... -
Alkali activated blast-furnace slag cement: The opportunity to solve sustainable issues
(American-Eurasian Network for Scientific Information, 2013)This paper aimed at investigating the possibility of alkali activated blast-furnace slag (BFS) to produce cement powder that could be alternative to ordinary Portland cement. It was found that an alkali activated BFS ... -
Review on the various ash from palm oil waste as geopolymer material
(Advanced Study Center Co. Ltd., 2013)The solid waste from palm oil mill industry has been increasing annually where it has been reported that the palm oil waste was produced 4 million tons/years in Malaysia only. Hence, the solution to overcome the problems ... -
The electronic structure, electronic charge density and optical properties of the diamond-like semiconductor Ag2ZnSiS4
(Springer Berlin Heidelberg, 2013-11)The electronic structure, electronic charge density and optical properties of the diamond-like semiconductor Ag2ZnSiS4 compound with the monoclinic structure have been investigated using a full-relativistic version of the ... -
Application of clay - based geopolymer in brick production: A review
(Trans Tech Publications Inc., 2013)This paper reviews and summarizes the current knowledge and application of clay as a geopolymer material in production of geopolymer brick. As we understand, the nature of source materials give a significant impact to the ... -
Disorder dependent half-metallicity in Mn2CoSi inverse Heusler alloy
(Elsevier Ltd., 2013)Heusler alloys based thin-films often exhibit a degree of atomic disorder which leads to the lowering of spin polarization in spintronic devices. We present ab-initio calculations of atomic disorder effects on spin ... -
Electronic structure, magnetism and robust half-metallicity of new quaternary Heusler alloy FeCrMnSb
(Elsevier B.V., 2013)A new quaternary Heusler alloy FeCrMnSb is identified by employing ab initio electronic structure calculations. It is stable in Y-structure which is also verified by various conditions governed by elastic constants c ij. ... -
Properties of fresh palm oil fuel ash based geopolymer material
(American-Eurasian Network for Scientific Information (AENSI), 2013-10)In this paper, palm oil fuel ash (POFA) was used as the soul material to produce geopolymer binder. Sodium silicate mixed with sodium hydroxide was used as alkaline activator to activate the palm oil fuel ash. Activator ... -
Natural rubber/styrene butadiene rubber/recycled nitrile glove (NR/SBR/rNBRg) ternary blend: Tensile properties & morphology
(AENSI Publisher All rights reserved, 2013-10)Recycling waste rubber products by utilising them in rubber blends had provided the simplest and most cost-effective ways in solving several environmental issues regarding the abundance of scrap rubbers. Discarded nitrile ... -
Mechanical performances of fly ash geopolymer bricks
(American Scientific Publishers, 2013-01)Geopolymer is a new class of three-dimensionally networked amorphous to semi-crystalline alumino-silicate materials, and first developed by Professor Davidovits in 1978. Geopolymers can be synthesized by mixing alumino-silicate ... -
The effect of electrolyte temperature on formation of porous aluminium oxide films in anodising process
(AENSI Publisher All rights reserved, 2013-10)A porous aluminium oxide film formed on aluminium was prepared in a mixed electrolyte of phosphoric acid and acetic acid solution. The morphology, growth and thickness of the film were investigated. The anodising process ... -
Milled groove square shape conformal cooling channels in injection molding process
(Taylor and Francis Group, LLC., 2013-08)In designing molds for injection molding process, it is very difficult to achieve efficient cooling with uniform thermal distribution. To overcome these issues, the uses of conformal cooling channels with the uniform ... -
Improving warpage on thin shallow parts in two-plate moulds with conformal cooling channels
(Praise Worthy Prize S.r.l., 2013-03)Nowadays, the trend of consumer products designed is getting smaller and most of cover is made from plastic which was produced by using injection molding process. Thus, the demand of thin shallow plastic parts in global ... -
Effect of heat treatment on Ni-P-Cg(Graphite)-SiC composite coated cast AlSi alloy
(Trans Tech Publications, 2013)The study presents the effect of heat treatment on electroless N-P-Cg-SiC composite coated cast AlSi (ADC12) alloy. No significant changes are noted on the average surface roughness and surface morphology of the coating ... -
Electroless Ni-P-Cg(Graphite)-SiC composite coating on cast AlSi alloy
(Trans Tech Publications, 2013)The study presents the electroless N-P-Cg-SiC composite coating on cast AlSi (ADC12) alloy where the bath temperature is maintained at 90°C, pH level is controlled between 4.5 to 5.0 and stirred at 450 rpm with mechanical ... -
Linear and nonlinear optical susceptibilities and the hyperpolarizability of borate LiBaB9O15 single-crystal: theory and experiment
(American Chemical Society, 2013-11)The single-crystal borate LiBaB9O15 was synthesized by a high-temperature solution reaction and structurally determined by the single-crystal X-ray diffraction technique. It crystallizes in the noncentrosymmetric space ... -
External temperature and pressure effects on thermodynamic properties and mechanical stability of yttrium chalcogenides YX(X=S, Se and Te)
(Elsevier B.V., 2013)The full potential linearized augmented plane wave method within the framework of density functional theory is employed to investigate the structural, thermodynamic and elastic properties of the yttrium chalcogenides (YX: ... -
Theoretical study of the structural, electronic structure, fermi surface, electronic charge density and optical properties of the of LnVO4 (Ln= Sm, Eu, Gd and Dy)
(Electrochemical Science Group (ESG), 2013-08)We present first-principles calculations of the electronic structure, Fermi surface, electronic charge density and optical properties of LnVO4(Ln= Sm, Eu, Gd and Dy) based on density-functional theory using the local density ... -
First-principles study of the electronic structure, charge density, Fermi surface and optical properties of zintl phases compounds Sr2ZnA 2 (A=P, As and Sb)
(Elsevier Ltd., 2013-11)We present first-principles calculations of the electronic structure, Fermi surface, electronic charge density and optical properties of Sr 2ZnA2 (A=P, As and Sb) based on density-functional theory using the local density ... -
MgH2 and LiH metal hydrides crystals as novel hydrogen storage material: Electronic structure and optical properties energy
(Elsevier Ltd., 2013-09)We have performed a comprehensive theoretical investigation of the electronic band structure, density of states, electronic charge density and optical properties of the novel hydrogen storage material MgH2 and LiH compounds. ...