Browsing School of Materials Engineering (Articles) by Title

Now showing items 216-235 of 560

    • Evaluate the effects of various surface roughness on the tribological characteristics under dry and lubricated conditions for Al-Si alloy 

      Riyadh A., Al-Samarai; Haftirman, Dr.; Khairel Rafezi, Ahmad, Dr.; Yarub, Al-Douri, Assoc. Prof. Dr. (Scientific Research Publishing Inc. All rights reserved., 2012-07)
      The effect of surface roughness average of hypereutectic aluminum silicon alloys (with 16 wt% Si) on the friction and wear was investigated. Various surface roughness average (Ra) of different degrees was verified as well ...

    • Evaluation of integrated anaerobic-aerobic biofilm reactor for degradation of azo dye methyl orange 

      Viswanathan, Murali; Ong, Soon An, Dr.; Ho, Li Ngee, Dr.; Wong, Yee Shian (Elsevier Ltd., 2013-09)
      This study was to investigate the mineralization of wastewater containing methyl orange (MO) in integrated anaerobic-aerobic biofilm reactor with coconut fiber as bio-material. Different aeration periods (3. h in phase 1 ...

    • Evidence of Coulomb correction and spin-orbit coupling in rare-earth dioxides CeO2, PrO2 and TbO2: An ab initio study 

      Mohammed Benali, Kanoun; Ali Hussain, Reshak, Prof. Dr.; Nawel, Kanoun-Bouayed; Souraya, Goumri-Said (Elsevier B.V., 2012-04)
      The current study investigates the structural, elastic, electronic and optical properties of CeO 2, PrO 2 and TbO 2 using the full potential (linearized) augmented plane wave plus local orbital method within the WuCohen ...

    • Evolution of the retrogression and reaging treatment on microstructure and properties of Aluminum Alloy (Al-Zn-Mg-Cu) 

      Naeem, Haider T.; Khairel Rafezi, Ahmad, Dr.; Kahtan Sadiq, Muhammed, Dr; Azmi, Rahmat, Prof. (Trans Tech Publications Inc., 2014-04)
      In this study the evolution of the retrogression and reaging (RRA) heat treatment process on microstructure and mechanical properties of AA 7075 Al-alloys which produced by semi-direct chill (DC) casting process were ...

    • The existing of oxygen nonstoichiometry in complex lithium oxides 

      Mohd Sobri, Idris, Dr. (Trans Tech Publications, 2013)
      The possibility of oxygen deficiency in lithium-based complex oxides particularly for layered rock salt structures has little attention in the literature, in spite of the importance of these materials as potential lithium ...

    • Experimental and numerical studies of finned L-shape heat pipe for notebook-PC cooling 

      Mohamed H A, Elnaggar; Mohd. Zulkifly, Abdullah, Dr.; Munusamy, Sri Raj Rajeswari (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      This paper presents the experimental, numerical, and analytical investigations on the horizontal L-shape heat pipe for the notebook-CPU cooling. Simulations are carried out for both the 2-D and 3-D cases. In a 3-D model, ...

    • External temperature and pressure effects on thermodynamic properties and mechanical stability of yttrium chalcogenides YX(X=S, Se and Te) 

      Seddik, T.; Rabah, Khenata, Prof. Dr.; Abdelmadjid, Bouhemadou; Guechi, N.; Sayede, Adlane D.; Varshney, Dinesh; Yarub, Al-Douri, Assoc. Prof. Dr.; Ali Hussain, Reshak, Prof. Dr.; Bin-Omran, S. (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: ...

    • Extraction and separation of Cu(II), Ni(II) and Zn(II) by sol-gel silica immobilized with Cyanex 272 

      Fazlul Bari; Noorzahan, Begum; Kamarudin, Hussin; Samsul Baharin, Jamaludin (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 ...

    • Extraction mechanism of Gd3+ by BTMPPA 

      Md Fazlul, Bari; Bahruddin, Saad; Ismail, Abdur Rahman; Muhammad Idris, Salleh (Elsevier, 2006)
      The extraction behavior of Gd(III) from acidic nitrate-acetato medium by bis(2,4,4-trimethylpentyl)phosphinic acid (BTMPPA, H2A2) in toluene either alone or in combination with trioctylphospine oxide (TOPO, B) has been ...

    • Extraction of silica from palm ash using citric acid leaching treatment: Preliminary result 

      Faizul, Che Pa; Abdullah, Chik, Prof. Madya Dr.; Md Fazlul, Bari, Dr. (Trans Tech Publications, 2013)
      Large quantities of agricultural wastes such as palm ash and rice husk are found throughout Malaysia, have a possibility to be used as a usefully renewable source for production of energy and silica (SiO2). Extensive ...

    • Extraction of silica from palm ash using organic acid leaching treatment 

      Faizul, Che Pa; Abdullah, Chik, Prof. Madya Dr.; Md Fazlul, Bari, Dr.; Noorina Hidayu, Jamil (Trans Tech Publications, 2014)
      Agricultural wastes such as palm ash and rice husk have a possibility to be used as a usefully renewable source for production of energy and silica (SiO2). Extensive researches have been carried out to extract silica from ...

    • Extraction of silica from palm ashvia citric acid leaching treatment 

      Faizul, Che Pa; Abdullah, Chik, Prof. Madya Dr.; Md Fazlul, Bari, Dr. (AENSI Publisher All rights reserved, 2013-10)
      Agricultural wastes such as palm ash and rice husk have a possibility to be used as a usefully renewable source for production of energy and silica (SiO2). Extensive researches have been carried out to extract silica from ...

    • Fabrication and characterization of porous F-75 for potential application in tissue engineering 

      Shamsul Baharin,  Jamaludin, Prof. Dr.; Tan, Wei Leng; Nur Hidayah, Ahmad Zaidi; Zuraidawani, Che Daud; Mazlee, Mohd Noor, Dr. (Trans Tech Publications, 2013)
      Porous F-75 (Co-Cr-Mo) was produced by powder metallurgy technique. F-75 powder was mixed with space holder and compacted using different pressures (300 MPa, 350 MPa, 400 MPa, 450 MPa). The green samples were sintered at ...

    • Fabrication and mechanical properties of composite palm ash mixed with phenolic resins 

      Mohd Radzi, Ali; Shamsul Baharin, Jamaludin, Prof. Dr.; Nur Hidayah, Ahmad Zaidi; Che Mohd Ruzaidi, Ghazali, Prof. Madya (International Network for Scientific Information Publication (INSI), 2011-11)
      Brake pad is one of the important engineering components in automobile and it is fabricated by combination of various materials. Asbestos is one of the components in brake pad that is harmful to the human. In this ...

    • The fabrication of artificial marble from dolomite (Batu Reput) 

      Kamarudin, Hussin; Shamsul Baharin, Jamaludin; Che Mohd Ruzaidi, Ghazali; Mohd Sobri, Idris; Mohd Nazry, Salleh; Mohabattul Zaman, S NS Bukhari; Khairul Nizar, Ismail (The Mineral, Metals & Materials Society (TMS), 2006-01)
      Perlis is one of the major producers of "Batu Reput" in Malaysia and majority of the deposits contain of high-purity calcium and magnesium carbonate. The composition of Batu Reput is similar with the ordinary dolomite. ...

    • The factors affecting the swelling of W–bronze composite system at different sintering conditions 

      Kahtan S, Muhammed, Dr.; Azmi, Rahmat, Prof. (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 ...

    • Failure analysis on a ruptured petrochemical pipe 

      Mohd, Harun; Shaiful Rizam, Shamsudin; Azmi, Kamardin (Carl Hanser Verlag, 2010-03-16)
      The failure took place on a welded elbow pipe which exhibited a catastrophic transverse rupture. The failure was located on the welding HAZ region, parallel to the welding path. Branching cracks were detected at the ...

    • Feasibility of producing wood fibre-reinforced geopolymer composites (WFRGC) 

      Mohd Mustafa Al Bakri, Abdullah; Mohd Izzat, Ahmad; Muhammad Faheem, Mohd Tahir; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Mohamed, Bnhussain, Prof. Dr.; Rafiza, Abdul Razak; Zarina, Yahya; Liyana, Jamaludin (Trans Tech Publications, 2013)
      Wood fibres have long been known as a fibre reinforcement for concrete. Due to its availability and low production cost, this natural fibre has been used in less developed country where conventional construction materials ...

    • Feasibility study on composition and mechanical properties of marine clay based geopolymer brick 

      Mohammad Tamizi, Selimin; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Liyana, Jamaludin; Aeslina, Abdul Kadir, Dr. (Trans Tech Publications, 2014)
      Geopolymer is an inorganic polymer performed in synthesis process of an aluminosilicate material which activated by alkaline activator solution. Marine clay, considered to be a waste substance which have an important ...

    • Ferroelectric and relaxor ferroelectric to paralectric transition based on Lead Magnesium Niobate (PMN) materials 

      Rozana Aina, Maulat Osman, Dr.; Mohd Sobri, Idris, Dr.; Zul Azhar, Zahid Jamal, Dato Prof. Dr.; Sanna, Taking, Dr.; Syarifah Norfaezah, Sabki, Dr.; Poopalan, Prabakaran, Dr.; Mohd Natashah, Norizan; Ili Salwani, Mohamad (Trans Tech Publications, 2013)
      First ferroelectric materials were found in Rochelle salt was in a perovskite structure. Lead Magnesium Niobate (PMN) is a perovskites with a formula of PbMg1/3Nb2/3O3 (PMN) and are typical representatives for most of all ...