Browsing Center of Excellence for Geopolymer and Green Technology (CEGEOGTECH) (Articles) by Title
Now showing items 15-34 of 136
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The density functional study of electronic structure, electronic charge density, linear and nonlinear optical properties of single crystal alpha-LiAlTe₂
(Elsevier, 2014)Self-consistent calculations is performed using the full potential linear augmented plane wave (FP-LAPW) technique based on density functional theory (DFT) to investigate the electronic band structure, density of states, ... -
Density functional study of electronic, charge density, and chemical bonding properties of 9-methyl-3-Thiophen-2-YI-Thieno [3,2-e] [1, 2, 4] Thriazolo [4,3-c] pyrimidine-8-Carboxylic acid ethyl ester crystals
(Elsevier B. V., 2014-06)A comprehensive theoretical density functional investigation of the electronic crystal structure, chemical bonding, and the electron charge densities of 9-Methyl-3-Thiophen-2-YI-Thieno [3, 2-e] [1, 2, 4] Thriazolo [4,3-c] ... -
Density of states, optical and thermoelectric properties of perovskite vanadium fluorides Na₃VF₆
(Elsevier/NORTH-HOLLAND, 2014)The electronic structure, charge density and Fermi surface of Na₃VF₆ compound have been examined with the support of density functional theory (DFT). Using the full potential linear augmented plane wave method, we employed ... -
Development of nano-material (nano-silver) in electronic components application
(AENSI Publisher All rights reserved, 2013-10)This paper presents the development of nano-material in electronic components especially in Plastic Leaded Chip Carrier (PLCC) application. The effect of nano-material in Plastic Leaded Chip Carrier (PLCC)will improve ... -
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 ... -
Dispersion of the second harmonic generation from CdGa₂X₄ (X = S, Se) defect chalcopyrite: DFT calculations
(Elsevier, 2014)All electron full potential linear augmented plane wave method was used for calculating the nonlinear optical susceptibilities of CdGa₂X4₄(X = S, Se) within the framework of density functional theory. The exchange correlation ... -
Drift and diffusion component studies in cdte structure for photovoltaic application
(ESG, 2014-01)A photovoltaic cell is designed to convert sunlight into electrical energy through the photoelectric effect. Solar cells are the most attractive source to harness solar energy; it is not only has high efficiency, but also ... -
Effect of Alkaline Activator to Fly Ash Ratio for Geopolymer Stabilized Soil
(EDP Sciences, 2017)Geopolymer technology have been developed and explored especially in the construction material field. However, lack of research related to geopolymer stabilized soil. In this research, the utilization of geopolymer has ... -
Effect of annealing atmosphere on the morphology of copper oxide thin films deposited on TiO₂ substrates prepared by sol-gel process
(Trans Tech Publications, 2014)Copper oxide films were prepared via sol-gel like spin coating starting from methanolic solutions of cupric chloride onto the TiO₂ substrates. Films were obtained by spin coating under room conditions (temperature, 25-30 ... -
Effect of beta tricalcium phosphate (β-TCP) on properties of Mg-Zn composites
(Trans Tech Publications, 2014)In this work, Mg and Zn powder were used to prepare the Mg-Zn/β-TCP composites with different β-TCP composition by using powder metallurgy technique. The composite were mixed using ball mill and compacted at 500 MPa. The ... -
The effect of chloride ion diffusion on corrosion activity of kaolin geopolymer paste in artificial seawater
(IOP Publishing Ltd, 2019-12)This paper presents the effect of chloride ion diffusion on the corrosion activity of kaolin geopolymer paste in artificial seawater. An aluminosilicate material that rich with aluminium and silicon such as kaolin is ... -
The Effect of Different Ratio Bottom Ash and Fly Ash Geopolymer Brick on Mechanical Properties for Non-loading Application
(EDP Sciences, 2017)This paper studies the finding of strength and water absorption of geopolymer bricks using bottom ash and fly ash as a geopolymer raw material for non-loading application with minimum strength. The study has been conducted ... -
The effect of different sizes "Batu Reput" (Dolomite) as a filler in SMR L and ENR-50
(Trans Tech Publications, 2013)The effects of different sizes of "Batu Reput" (Dolomite) filler which are smaller size (<63μm) and bigger size (75-150μm) on tensile and morphological properties of "Batu Reput" (Dolomite) filled SMR L and epoxidized ... -
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 ... -
Effect of fly ash/alkaline activator ratio and sodium silicate/NaoH ratio on fly ash geopolymer coating strength
(Trans Tech Publications, 2013)Fly ash geopolymer coating material potential used to protect surface used in exposure conditions. Ratio of fly ash/alkaline activator and Na₂SiO₃/NaOH play important parameter on determining the best flexural strength of ... -
The effect of gap between plastic leaded chip carrier (PLCC) using computational fluid dynamic (CFD) software, FLUENT™
(AENSI Publisher All rights reserved, 2013-10)This paper presents the effect of gap between Plastic Leaded Chip Carrier (PLCC) by using three dimensional numerical analysis of heat and fluid flow in computer. 3D model of microprocessors is built using GAMBIT and ... -
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 ... -
The effect of inoculation on properties of modified ductile Ni-resist alloy
(Trans Tech Publications, 2014)In this study, ductile Ni-resist alloy with a minimum 18 wt. % nickel composition was modified. Up to 12 wt. % manganese was added together with 10 wt. % nickel before undergoing the inoculation process at various percentages ... -
Effect of processing route on the morphology of thermoplastic polyurethane (TPU) nanocomposites incorporating organofluoromica
(Trans Tech Publications, 2014)In the production of polymer nanocomposites, the processing method determines the dispersion of the nanofiller and hence, the final nanocomposite properties. In this work, the potential of high energy milling of the ... -
Effect of pyrolysis temperature on the synthesis of carbon fiber from natural organic waste
(Trans Tech Publications, 2014)Carbon fibers are produced from natural sources of water hyacinth plants that have been dried, ground and sieved to three different particle sizes of 600 μm, 300 μm and less than 300 μm. Through the analysis of data obtained ...