School of Materials Engineering (Articles): Recent submissions
Now showing items 301-320 of 560
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Hybrid multiwalled carbon nanotubes/minerals as potential fillers for polymer composites
(Trans Tech Publications, 2012-12)Minerals are always used as filler material in polymer composite application purposely to reduce the price. In order to optimize the use of mineral fillers instead of price reduction, there were several approaches that ... -
Effects of cobalt addition and temperature on microstructure and density of w-25Cu composites prepared via liquid infiltration
(Trans Tech Publications, 2012-12)In this study, the effect of Co and sintering temperature on microstructure of W-25Cu composites prepared via copper melt infiltration has been investigated. The concentration of Co addition used ranged from 0.5 to 3wt. ... -
Compressive and wear resistance of alumina reinforced fe-cr matrix composites
(Scientific.Net, 2012-12)Fe-Cr matrix composite reinforced with alumina with mean powder sizes of 13, 23, 24 and 64 μm was successfully obtained through powder metallurgy method. The powder mixture were blended at a rotating speed of 250 rpm for ... -
Intermetallic compound formation on solder alloy/cu-substrate interface using lead-free sn-0.7cu/recycled-aluminum composite solder
(Scientific.Net, 2012-12)Feasibility of using recycled-Aluminum (re-Al) as reinforcement particulates in Sn-0.7Cu is assessed by powder technology method, whereby re-Al particulates are produced from discarded aluminum beverage cans. This paper ... -
Reviews on the Geopolymer materials for coating application
(Scientific.Net, 2012-12)The application of geopolymer has been expand in many areas where before this it only used for the production of cement and concrete. One of the new applications of geopolymer is for coating. Metakaolin, fly ash and ... -
Effects of NR and liquid NR loading on swelling behaviour of TPU/NR blends
(Trans Tech Publications, 2013)The blends of thermoplastic polyurethane (TPU) with natural rubber (NR) at four different blend ratios were prepared via melt blending at 180°C and 190°C, with addition of liquid natural rubber (LNR) as compatibilizer. The ... -
Study on the properties of oil palm trunk fiber (OPTF) in cement composite
(Trans Tech Publications, 2013)Properties of oil palm trunk fiber reinforced cement composite were investigated in this study. Oil palm trunk fiber was used to improve the properties of cement composite. It was found that increasing in oil palm trunk ... -
Alteration in the microstructure of fly ash geopolymer upon exposure to elevated temperatures
(Trans Tech Publications, 2013)This paper represents the mechanical and microstructure changes in geopolymeric material synthesized by the alkali activation of locally source fly ash at high temperatures of 400, 600 and 800 °C. The high compressive ... -
A study on the synthesis of fly ash-based lightweight aggregate geopolymer concrete
(American Scientific Publishers All rights reserved., 2013-01)The experiments conducting for current investigation aimed to study the synthesis process for lightweight aggregate geopolymer concrete (LWAGC) and explore the significance and limitations of the activator content on the ... -
The utilisation of activated carbon (AC) from palm shell waste to treat textile wastewater
(AENSI Publisher All rights reserved., 2013-10)Heavy metals are widely used in textile industries and significant losses occur during the manufacturing and processing of textiles, and these lost heavy metals are eventually discharged in the effluent. Activated carbon ... -
Study on Ferum (Fe) and Zinc (Zn) removal by using rice bran at Sungai Pelepah, Kota Tinggi, Johor
(AENSI Publisher All rights reserved., 2013-10)Water pollution due to heavy metals is currently occurring at Sungai Pelepah, Kota Tinggi. Adsorption method is one of the most low cost effective methods to overcome this pollution problem compared to the other available ... -
Comparison of geopolymer fly ash and ordinary Portland cement to the strength of concrete
(American Scientific Publishers, 2013-12)The aim of this study is to evaluate the effect of various fly ash: aggregate ratios by using fly ash (FA) based geopolymer compared to ordinary Portland cement (OPC) on the compressive strength of concrete. The different ... -
Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites
(Universiti Kebangsaan Malaysia, 2013-12)This paper reports on the effects of HAP addition and sintering temperature on the microstructure and properties of the F-75/HAP composites fabricated by powder metallurgy. Co-Cr-Mo (F-75) is used in orthopedics because ... -
Mechanical and microstructural evaluations of lightweight aggregate geopolymer concrete before and after exposed to elevated temperatures
(MDPI, Basel, Switzerland, 2013)This paper presents the mechanical and microstructural characteristics of a lightweight aggregate geopolymer concrete (LWAGC) synthesized by the alkali-activation of a fly ash source (FA) before and after being exposed to ... -
Effects of silane coupling agent on mechanical properties and swelling behaviour of coconut fiber filled polypropylene composite
(Scientific.Net, 2012-12)Silane treatment used to improve mechanical properties and swelling behaviour of polypropylene/coconut fiber (PP/CF) composites by creating more adherent bonding between CF filler and PP Matrix. 3-Aminopropyltriethoxysilane ... -
Synthesis and characterization of MWCNT/Dolomite hybrid compound as potential composite fillers
(Scientific.Net, 2012-12)Multiwalled carbon nanotubes/dolomite (MWCNT/dolomite) hybrid compound was synthesized using the Chemical Vapour Deposition (CVD) technique. The catalyst was prepared via the co-precipitation method. The process involves ... -
Thermal, electrical and physical properties of recycled copper filled epoxy composites
(Scientific.Net, 2012-12)The effect of recycled copper filled epoxy composites on thermal, electrical and physical properties were investigated. The recycled copper was collected as a waste from the milling machine. The recycled copper filled epoxy ... -
The factors affecting the swelling of W–bronze composite system at different sintering conditions
(Scientific.Net, 2012-12)During sintering of Wbronze metal matrix composites, the difference in the interdiffusuion path, sintering atmosphere and alloying element might be the source of the swelling phenomenon. In this study, the factors lead to ... -
Microstructure evolution of Sn-3.5Ag-1.0Cu-0.5Ni/Cu system lead free solder under long term thermal aging
(Scientific.Net, 2012-12)Due to environmental concerns, lead-free solders were introduced in replacing the lead-based solders in microelectronics devices technology. Although there are many lead-free solder available, the Sn-Ag-Cu solder was ... -
The effect of stoichiometry to the phase formation of barium titanate
(Scientific.Net/Trans Tech Publications, 2012-12)This paper focus on the effect of different ratio between barium (Ba) and titanium (Ti) to the production of high purity of barium titanate (BT). On this research, the sample was prepared by solid-state reaction between ...