Browsing School of Materials Engineering (Articles) by Title

Now showing items 461-480 of 560

    • Self-compacting high density tungsten-bronze composites 

      Kahtan S, Muhammed, Dr.; Azmi, Rahmat, Prof.; Azizan, Aziz, Assoc. Prof. Dr. (Elsevier, 2013-07)
      Green compacts of W–bronze were encapsulated in shells of bronze powder, placed in a ceramic mold and sintered in alumina tube furnace at 1150 °C. Throughout the sintering cooling stage the differential coefficient of ...

    • The sensing mechanism and detection of low concentration acetone using chitosan-based sensors 

      Tulus Ikhsan, Nasution; Irwana, Nainggolan, Dr.; Sabar Derita, Hutagalung, Dr.; Khairel Rafezi, Ahmad, Dr.; Zainal Arifin, Ahmad (Elsevier B. V., 2013)
      This paper aims to discuss the usage of chitosan film sensors to detect acetone concentrations in human breath, in order to precisely diagnose diabetes mellitus in patients. Acetone concentration in the breath varies from ...

    • Sensor fusion of electronic nose and electronic tongue for classification of Orthosiphon stamineus 

      Zakaria, A.; Ali Yeon, Md Shakaff, Prof. Dr.; Adom, Abdul Hamid, Assoc. Prof. Dr.; Mohd Nor, Ahmad, Prof. Dr.; Shaari, A. R.; Jaafar, M. N., Prof. Madya. Dr.; Abdullah, A. H.; Fikri, N. A.; Latifah Munirah, Kamarudin (American Scientific Publishers, 2011-04)
      Sensor fusion of electronic nose (e-nose) and electronic tongue (e-tongue) has lead to an improved classification of Orthosiphon stamineus (also known as Misai Kucing). The fusion technique was presented and compared with ...

    • Shear strain analysis in FSS microchannel 

      Zaliman, Sauli, Dr.; Retnasamy, Vithyacharan; Nor Shakirina, Nadzri; Tan, Hsio Mei; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (AENSI Publications, 2013-10)
      Microfluidics has motivated the development of various fields in biological engineering due to its advantages. The favorable benefits of using microfluidicsare being easy to fabricate, requirement of minimal fluid volumes, ...

    • Shift of band gap from direct to indirect and optical response of lif under pressure 

      Sajid, A.; Murtaza, Ghulam; Ali Hussain, Reshak, Prof.Dr. (World Scientific Publishing Co. Pte Ltd, 2013-04)
      We hereby are reporting the transition pressure at which lithium fluoride (LiF) compound transforms from direct band gap to indirect band gap insulator on the basis of FP-LAPW calculations. The fundamental band gap of LiF ...

    • A simple one-step anodising method for the synthesis of ordered porous anodic alumina 

      Voon, Chun Hong; Mohd Nazree, Derman, Dr.; Uda, Hashim, Prof. Dr.; Khairel Rafezi Ahmad, Dr.; Ho, Li Ngee (Taylor & Francis, 2014)
      Porous anodic alumina (PAA) has been produced on aluminium substrate by single-step anodising at 50 V in 0.3 M oxalic acid at 15°C for 60 min. The highly ordered pore and cell structure was achieved by subjecting the PAA ...

    • Simulation of Brillouin and Rayleigh scattering in distributed fibre optic for temperature and strain sensing application 

      Ali Hussain, Reshak, Prof. Dr.; Mukhzeer, Mohamad Shahimin, Dr.; Sohiful Anuar, Zainol Murad, Dr.; S., Azizan (Elsevier B.V., 2013)
      This paper presents simulations of a distributed fibre optic sensor for temperature and strain sensing. The behaviours of Brillouin and Rayleigh scattering in optical fibres are studied through the backscatter signals. The ...

    • Simultaneous extraction and separation of Cu(II), Zn(II), Fe(III) and Ni(II) by polystyrene microcapsules coated with Cyanex 272 

      Md Fazlul, Bari; Md Sohrab, Hossain; Iqbal M., Mujtaba; Shamsul Baharin, Jamaluddin; Kamarudin, Hussin (Elsevier B.V, 2009-02)
      The preparation of polystyrene microcapsules coated with Cyanex 272 (MC-Xs) have been investigated and simultaneous extraction and separation behavior of Cu(II), Zn(II), Fe(III) and Ni(II) in both batch and packed column ...

    • Single-crystal oxoborate (Pb 3O) 2(BO 3) 2WO 4: Growth and characterization 

      Ali Hussain, Reshak, Prof. Dr.; Xuean, Chen; Auluck, Sushil, Dr.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (Elsevier Ltd, 2012-09)
      An oxoborate, (Pb 3O) 2(BO 3) 2WO 4, has been prepared by solid-state reaction methods below 620°C. Single-crystal XRD analysis shows that it crystallizes in the orthorhombic group Cmcm with a = 18.480(4) , b = 6.3567(13) ...

    • Sintering behavior and microstructure evolution of mechanically alloyed W–bronze composite powders by two-step ball milling process 

      Kahtan S., Muhammed, Dr.; Azmi, Rahmat, Prof.; Khairel Rafezi, Ahmad, Dr. (Elsevier, 2013-01)
      The miscibility of W in Sn and Cu is extremely poor. Sintering of W–bronze composites to their full density is proved to be difficult. To tackle this problem, the ball milling process of the W–bronze powder mixture proposed ...

    • Sintering effects on mechanical properties of Co-HA composite prepared by modified electroless deposition. 

      Mohd Zaheruddin, Kasmuin; Sri Asliza, Md Amin; Azmi, Rahmat, Dr.; Shamsul Baharin, Jamaludin, Prof. Dr.; Khairel Rafezi, Ahmad, Dr. (Trans Tech Publications, 2014)
      Co-HA composite produced using electroless deposition without conventional sensitization and activation treatment was studied with varying sintering temperature (1100°C, 1200°C and 1250°C). The particles size, bulk density, ...

    • Sol-gel synthesis and preliminary characterizations of novel silica hybrid xerogels 

      Syed Nuzul Fadzli, Syed Adam; Roslinda, Shamsudin, Dr.; Firuz, Zainuddin (Trans Tech Publications, 2013-12)
      Hybrid silica xerogel mesoporous composite was synthesized by a mild temperature acid catalysed sol-gel route where a natural copolymer; sodium alginate (Na-COOH) together with calcium oxide (CaO) powder were incorporated ...

    • Sol-gel synthesis of novel silica hybrid xerogels : Porous studies 

      Syed Nuzul Fadzli, Syed Adam; Roslinda, Shamsudin, Dr.; Shahidan, Radiman, Prof. Dr.; Firuz, Zainuddin (Trans Tech Publications, 2014)
      Hybrid silica xerogel mesoporous composite was synthesized by a low temperature acid catalysed sol-gel route where a natural copolymer; sodium alginate (Na-COOH) together with calcium oxide (CaO) powder were incorporated ...

    • Solar photocatalytic degradation of mono azo methyl orange and diazo reactive green 19 in single and binary dye solutions: Adsorbability vs photodegradation rate 

      Ong, Soon An, Dr.; Ohm, Mar Min; Ho, Li Ngee, Dr.; Wong, Yee Shian (Springer-Verlag Berlin Heidelberg, 2013-05)
      The objective of this study was to examine the effects of adsorbability and number of sulfonate group on solar photocatalytic degradation of mono azo methyl orange (MO) and diazo Reactive Green 19 (RG19) in single and ...

    • Static and dynamic compressive properties of mica/polypropylene composites 

      Mohd Firdaus, Omar; Hazizan, Md Akil; Zainal Arifin, Ahmad (Elsevier B. V., 2011-01-25)
      The static and dynamic properties of mica/polypropylene composites, with a mica content of 10, 15, 20% by weight, were studied at different levels of strain rates (from 10s-4 to 10s2), using a conventional Universal Testing ...

    • Static and dynamic compressive properties of polypropylene/zinc oxide nanocomposites 

      Mohd Firdaus, Omar; Hazizan, Md Akil; Zainal Arifin, Ahmad, Prof.; Shahrom, Mahmud (Wiley Periodicals, Inc., 2014-04)
      The effect of strain rate is widely recognized as an essential factor that influences the mechanical properties of polymer matrix composites. Despite its importance, no previous work has been reported on the high-strain ...

    • Static X-ray scans on the titanium hydride (TiH2) powder during dehydrogenation 

      Nur Farhana, Hiyazi; Wang, Yu; Mazlee, Mohd Noor, Dr.; Lap, Sammy Ip Chan (Trans Tech Publications, 2013)
      This work investigates the dehydrogenation of TiH2 powder during isothermal heating at 600°C using the static x-ray scans of high temperature x-ray diffraction (XRD). As-received TiH2 powder with a particle size of 5 μm ...

    • Strength and microstructural properties of mechanically-activated kaolin geopolymers 

      Cheng, Yong Heah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Mohammed, Bnhussain; Luqman, Musa; Khairul Nizar, Ismail; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Liew, Yun Ming (Trans Tech Publications, 2012-12)
      Kaolin geopolymers exhibit low strength properties due to its plate-like nature which contribute to smaller surface area for geopolymerization reactions. Layered kaolin structure only allows very little, if any, substitution ...

    • Strength of concrete based cement using recycle ceramic waste as aggregate 

      Mohd Mustafa Al-Bakri, Abdullah; Norazian, Mohamed Noor; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Arif Anuar, Mohd Salleh; Adila, Abdullah (Trans Tech Publications, 2013)
      The main focus of this research is to study the strength of concrete with ceramic waste as coarse aggregate. The sources of ceramic waste are obtained from the industrial in Malaysia. Presently, in ceramics industries the ...

    • Strength of concrete with ceramic waste and quarry dust as aggregates 

      Mohd Mustafa Al-Bakri, Abdullah; Norazian, Mohamed Noor; Mazlan, Mohamed; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Liyana, Jamaludin (Trans Tech Publications, 2013)
      This research focuses on a study of the strength of concrete with ceramic waste as coarse aggregate and quarry dust as fine aggregate. The sources of ceramic waste and quarry dust are obtained from the industrial in Malaysia. ...