Browsing School of Materials Engineering (Articles) by Subject "Microstructure"

Now showing items 1-15 of 15

    • Case Carburizing Behaviour of Sintered Phosphorus-Containing Ternary Ferrous Powder Compacts 

      Mohammed Misbahul, Amin; A. U., Malik; Md. Hamiuddin (Z.H. College of Engineering and Technology, Aligarh Muslim University, India, 1983)
      The carburizing response of sintered compacts of iron containing phosphorus (0.6%), nickel or molybdenum (2% to 4%) and copper (2% to 4%) has been studied. Hardness variation from case to core was measured for sintered and ...

    • Comparative characterization of Clinker’s microstructure at different temperature zone during cement production 

      Mohd Sobri, Idris; Khairul Nizar, Ismail; Shamsul Baharin, Jamaludin; Che Mohd Ruzaidi, Ghazali; Kamarudin, Hussin (Science Publications, 2007)
      Temperature is an important parameter for transformation of minerals in clinker during cement productions. It influences the formation of alite from belite during calcinations and clinkering processes. The result of ...

    • Effect of curing regimes on metakaolin geopolymer pastes produced from geopolymer powder 

      Liew, Yun Ming; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Mohammed, Bnhussain; Luqman, Musa; Khairul Nizar, Ismail, Prof. Madya Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Cheng, Yong Heah (Scientific.Net/Trans Tech Publications, 2012-12)
      The properties of metakaolin geopolymer paste are affected by the alkali concentration, the initial raw materials, solidification process, and amount of mixing water as well as the curing conditions. This study aimed to ...

    • Effect of Mg, Si and Cu content on the microstructure of dilute 6000 series aluminium alloys 

      Aiza, Jaafar; Azmi, Rahmat, Prof. Madya Dr.; Zuhailawati, Hussain, Prof. Madya Dr.; Ismail, Zainol, Prof. Madya Dr. (Elsevier B.V., 2011-09-01)
      The effect of Mg, Si and Cu content on the microstructural development during ageing treatment of dilute 6000 series alloys have been investigated using transmission electron microscopy (TEM). Four dilute alloys were used ...

    • The effects of Al2O3 amount on the microstructure and properties of Fe-Cr matrix composites 

      Saidatulakmar, Shamsuddin; Shamsul Baharin, Jamaludin, Prof. Dr.; Zuhailawati, Hussain; Zainal Ariffin, Ahmad (Springer, 2010-12)
      Iron based matrix composites reinforced with 5 to 25 wt pct of Al2O3 particles were fabricated using the powder metallurgy method. The samples were prepared by mixing at 250 rpm for 30 minutes, uniaxially pressing at 750 ...

    • Effects of cobalt addition and temperature on microstructure and density of w-25Cu composites prepared via liquid infiltration 

      Hafed, Ibrahim; Azizan, Aziz; Azmi, Rahmat (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. ...

    • Enhanced liquid-phase sintering of W–Cu composites by liquid infiltration 

      Hafed, Ibrahim; Azizan, Aziz; Azmi, Rahmat (Elsevier, 2014-03)
      Full-density of consolidated W–Cu composites produced via conventional sintering method is difficult to achieve. In this work, fully-dense W–Cu composites were developed via the combination of the liquid phase sintering ...

    • General properties of kaolin geopolymers 

      Heah, Cheng Yong; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al-Bakri, Abdullah; Mohamed, Bnhussain, Prof. Dr.; Luqman, Musa, Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Liew, Yun Ming (American Scientific Publishers, 2013-01)
      This paper reported the properties of kaolin geopolymers in term of the bulk density, compressive strength, qualitative observation and SEM analysis of the kaolin geopolymers. Kaolin geopolymers were synthesized through ...

    • Microstructure and interface analysis of glass particulate reinforced aluminum matrix composite 

      Shamsul Baharin,  Jamaludin, Prof. Dr.; Hadipramana, Josef; Mohd Fitri, Mohamad Wahid; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Azmi, Rahmat, Prof. (Trans Tech Publications (TTP), 2013)
      A characterization of microstructure and interface was made on the composites Al- 4% Cu reinforced with 15 wt. % glass particulate. The composite was fabricated by powder metallurgy followed by solution treatment and ...

    • Microstructure and microhardness properties of Fe-Cr-Al2O3 composites 

      Saidatulakmar, Shamsuddin; Shamsul Baharin, Jamaludin, Prof. Dr.; Zuhailawati, H.; Zainal Arifin, A. (Universiti Putra Malaysia (UPM), 2010)
      The requirement for high performance materials of high wear and corrosion resistance lead to an increasing interest in ferrous matrix composites. Metal matrix composite of iron-chromium reinforced with alumina was fabricated ...

    • Microstructure study on optimization of high strength fly ash based geopolymer 

      Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohamed, Bnhussain, Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Rafiza, Abdul Razak; Zarina, Yahya (Trans Tech Publications, 2012)
      The compressive strength and microstructural characteristics of fly ash based geopolymer with alkaline activator solution were investigated. The sodium hydroxide and sodium silicate were mixed together to form an alkaline ...

    • Microstructures study on cuprous oxide thin films deposited on different substrates by using sol-gel technique 

      Dewi Suriyani, Che Halin; Ibrahim, Abu Talib; Haiza, Haroon; Abdul Razak, Daud; Muhammad Azmi, Abd Hamid (Scientific.Net/Trans Tech Publications, 2012-12)
      Cuprous oxide (Cu₂O) thin films were formed onto three different substrates such as indium tin oxide (ITO) coated glass, titanium oxide (TiO₂) and n-Si substrates by sol-gel spin coating technique. It was found that the ...

    • On the structure of shape memory alloys 

      Cristian Acitei, Dragos; Victor Sandu, Andrei; Mohd Mustafa Al Bakri, Abdullah; Petrica, Vizureanu; Alida, Abdullah (Trans Tech Publications, 2013-12)
      The paper presents the obtaining of shape memory alloys, base copper and a diffractometer and microscopic study on some samples. The study was made on CuZnAl samples, obtained by classic casting and educated. The shape ...

    • Properties of metakaolin geopolymeric binder 

      Liew, Yun Ming; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Mohamed, Bnhussain, Prof. Dr.; Luqman, Musa, Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Heah, Cheng Yong (American Scientific Publishers, 2013-01)
      This paper investigates the physical and mechanical properties as well as the morphology study of the MK geopolymeric binder. Mixture of waterglass liquid and NaOH solution were used as the activator solution for the ...

    • 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 ...