Browsing School of Materials Engineering (Articles) by Author "Abdul Razak, Daud"
Now showing items 1-6 of 6
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Effect of annealing atmosphere on the morphology of copper oxide thin films deposited on TiO₂ substrates prepared by sol-gel process
Dewi Suriyani, Che Halin; Ibrahim, Abu Talib; Abdul Razak, Daud; Muhammad Azmi, Abd Hamid (Trans Tech Publications, 2014)Copper oxide films were prepared via sol-gel like spin coating starting from methanolic solutions of cupric chloride onto the TiO₂ substrates. Films were obtained by spin coating under room conditions (temperature, 25-30 ... -
An electrochemical impedance spectroscopy study of Al-Zn and Al-Zn-Sn Alloys in tropical seawater
M. C., Isa; Abdul Razak, Daud; M. Y., Ahmad; M., Daud; Shaiful Rizam, Shamsudin; N., Hassanuddin; M. S., Din Yati; M. M., Muhammad (Trans Tech Publications, Switzerland, 2012)In this paper, a study on the electrochemical behaviour and electrical properties of Al-Zn and Al-Zn-Sn alloys in tropical seawater using open circuit potential (OCP) measurement and electrochemical impedance spectroscopy ... -
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 ... -
Nitridation of Al-Mg-Si alloys through dynamic heating
Roslinda, Shamsudin; Saiful Rizam, Shamsudin; Abdul Razak, Daud; Hamid, M.A .A (Universiti Kebangsaan Malaysia, 2007-12)Nitridation behaviour of Al-Mg-Si alloys as studied as a function of temperature by means of thermogravimetry method. A reactive gas, N2-4%H2 at a rate of 10 ml/min was purged into the thermogravimetry analyser chamber. ... -
Preparation of photoelectrochemical cell of ITO/Cu2O/PVC-LiClO4/graphite using Cu2O films as an active layer
Dewi Suriyani, Che Halin; Haiza, Haroon; Ibrahim, Abu Talib; Abdul Razak, Daud; Muhammad Azmi, Abd Hamid (Trans Tech Publications, 2014-02)Cuprous oxide (Cu2O) thin films were successfully grown on indium tin oxide (ITO) coated glass by sol-gel spin coating using diethanolamine (DEA) as a solubility agent. The films were annealed at 350 °C in 5% H2 + 95% N2 ... -
Transient parameters of a coated quartz crystal microbalance sensor for the detection of volatile organic compounds (VOCs)
Shafiqul Islam, A. K M; Zhari, Ismail; M. Nizam, Ahmad; Bahruddin, Saad; Abdul Rahman, Othman; Ali Yeon, Md Shakaff; Abdul Razak, Daud; Ishak, Z. (Elsevier B.V., 2005-09)A PVC blended lipid membrane coated quartz crystal microbalance has been prepared to mimic human olfaction system. Transient response curves of the sensor on exposure to methanol, ethanol, chloroform, acetone and benzene ...