Browsing Center of Excellence for Geopolymer and Green Technology (CEGEOGTECH) (Articles) by Title
Now showing items 116-135 of 135
-
Study on properties and morphology of kaolin based geopolymer coating on clay substrates
(Trans Tech Publications, 2013-12)The application of geopolymer as a coating was not widely explored by other researchers and therefore the study of kaolin based geopolymer coating applied on different types of clay substrate (unsintered and sintered) was ... -
Study on radioactivity components, water quality and microstructure characteristic of volcano ash as geopolymer artificial aggregate
(SYSCOM 18, 2013-06)The assessments of radioactivity, water qualitytesting and microstructure characteristic of volcano ash have been examined. The measurement of the 226Ra, 232Th, 40K, and 238U were carried out using radioactive concentration ... -
A study on relationship between porosity and compressive strength for geopolymer paste
(Trans Tech Publications, 2013-12)This paper presents a study on the relationship between porosity and compressive strength for geopolymer paste. In this research, geopolymer paste was made from fly ash class F based geopolymer mixed with alkaline activator; ... -
Sulfuric acid attack on ordinary Portland cement and geopolymer material
(Institute for Scientific Information (ISI), 2013-09)The resistance of ordinary Portland cement binder towards acid had been widely discussed by researchers. The deterioration effect of this binder may cost high repair expense and rehabilitation. Geopolymer material is a new ... -
Surface modification via wet chemical etching of single-crystalline silicon for photovoltaic application
(Elsevier Ltd., 2013-11)The potential of solar cells have not been fully tapped due to the lack of energy conversion efficiency. There are three important mechanisms in producing high efficiency cells to harvest solar energy; reduction of light ... -
Synthesis and characterization of iron produced from iron mill scale
(Trans Tech Publications, 2014-01)In this project, iron mill scale has been used to produce iron powder that can be used within the Powder Metallurgy process. To achieve this objective, the iron mill scale needs to be refined. This involve the work of ... -
Tensile and morphological properties of low density polyethylene/ spear grass composites
(Trans Tech Publications, 2014)The spear grass content on the tensile properties, morphology of low-density polyethylene (LDPE)/spear grass was investigated. The compatibilising effect of epoxidised natural rubber (ENR 50) LDPE and spear grass was mixed ... -
Tensile and morphology properties of polylactic acid/ treated typha latifolia composites
(Trans Tech Publications, 2013-12)This paper is focused to investigate the effect of treated natural fiber (typha latifolia) content on tensile and morphology properties of polylactic acid (PLA)/treated typha latifolia (T-TyLa) composites. The composite ... -
Tensile properties and FTIR analysis of HDPE/soya spent powder in oven aging
(AENSI Publisher All rights reserved, 2013-10)This investigation involves pure HDPE and then HDPE with addition of soya spent powder with different weight percentagesbefore and after exposing in the oven aging. The characteristics of pure HDPE and HDPE/ soya spent ... -
The tensile properties and morphology analysis of recycled mattress filled natural rubber compounds
(AENSI Publisher All rights reserved, 2013-10)The tensile properties and morphology analysis of Recycled Mattress (rMat) filled Standard Malaysian Rubber (SMR L) and Epoxidized Natural Rubber (ENR 50) was successfully studied. The both compounds were prepared by two ... -
Theoretical calculations for MUO3 (M = Na; K; Rb): DFT + U study
(Elsevier B.V., 2014-09)The energy band structure, density of states and electronic charge density for MUO3 (M = Na; K; Rb) compound has been inspected in support of density functional theory (DFT). We have employed the GGA + U to treat the ... -
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 ... -
Thermal expansion behavior of the electroless copper coated Cu-SiCp composites fabricated via the conventional powder metallurgical technique
(Trans Tech Publications, 2014-01)The introduction of the metal matrix composites as the advanced electronic packaging materials is highly anticipated because their thermal properties can be engineered to match those of semiconductors, ceramics substrates ... -
Thermal management of electronic components by using computational fluid dynamic (CFD) software, fluent™ in several material applications (epoxy, composite material & nano-silver)
(Trans Tech Publications, 2013)This paper presents the thermal management of electronic components, microprocessor by using three dimensional numerical analysis of heat and fluid flow in computer. 3D model of microprocessors is built using GAMBIT and ... -
Thermoelectric properties of a single graphene sheet and its derivatives
(Royal Society of Chemistry, 2014-04)The thermoelectric properties of pristine graphene and H2S adsorbed onto bridge, hollow and top sites of a graphene sheet are investigated using the semi-classical Boltzmann transport theory. The average values of electrical ... -
Thermoelectric properties, effective mass, chemical bonding, and optical properties of 1,3,6-trimetylo-alloxazine: C₁₃H₁₂N₄O₂
(ESG, 2014)The thermoelectric properties, electronic band structure, density of states, chemical bonding, optical properties, electrons and holes effective mass of 1,3,6-trimetylo-alloxazine are calculated by using the full potential ... -
Thermoelectric properties, electronic structure and optoelectronic properties of anisotropic Ba₂Tl₂CuO₆ single crystal from DFT approach
(Elsevier/NORTH-HOLLAND, 2014-03)First principle calculation was performed for the electronic structure, electronic charge density, Fermi surface, optical and thermoelectric properties of Ba₂Tl₂CuO₆ compound. From the electronic band structure the two ... -
Third harmonic generation process in Al doped ZnO thin films
(Elsevier, 2014-01)We have performed studies on the third-order nonlinear optical susceptibility of Al doped ZnO (AZO) thin films using z-scan and third harmonic generation techniques. From the present studies, it reveals that the introduction ... -
Treated oil palm ash as precursor in the zeolite synthesis
(Trans Tech Publications Ltd., 2016)In this study, the ability of treated oil palm ash aided with kaolin powder to produce zeolites is studied. The palm ash has been treated with citric acid via a leaching process to get rid of the metallic impurities in it. ... -
Wettability and shear strength of Sn-Cu-Ni-xSi3N4 composite solder
(Trans Tech Publications Ltd., 2016-07)The wettability and mechanical properties of solder the joint of Sn-Cu-Ni-xSi3N4 had been investigated. In this study, five different silicon nitride (Si3N4) percentage addition were chosen (0 wt. %, 0.25 wt. %, 0.5 wt. ...