Browsing Mohd Zamzuri Mohammad Zain, Dr. by Issue Date
Now showing items 1-20 of 20
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Relationships validation between KPOV and KPIV using hypothesis tests
(Universiti Malaysia Perlis (UniMAP)Institut Matematik Kejuruteraan, 2010-06-02)Hypothesis tests are procedures for making rational decisions about the reality of effects. The objective of this paper was to determine the relationships between Key Process Output Variables (KPOV) and Key Process Input ... -
Effect of NaVO3 concentration on corrosion resistance of conversion coating on AZ91D magnesium alloy
(Trans Tech Publications, 2012)Anticorrosive oxide films were successfully prepared on AZ91D magnesium alloy by chemical conversion coating in La (NO3)3 electrolytes with and without NaVO3. The morphologies and chemical composition were characterized ... -
The study of lean layout in an automotive parts manufacturer
(Trans Tech Publications, 2012)The term "Lean" was the Japanese model and had been associated with the practice of interpreting the value added activities from those that are wasted ("muda" in Japanese) in an organization and its supply chain [1]. Apart ... -
Design and anaysis of thermoacoustic air conditioning system as environmental friendly device
(Trans Tech Publications, 2012-02)Thermoacoustic air conditioning system is a new technology design of cooling system which offers the possibility for simple and efficient energy conversion devices. This research is looking an alternative for CFC-contained ... -
Effect of NaVO3 concentration on corrosion resistance of conversion coating on AZ91D magnesium alloy
(Universiti Malaysia Perlis (UniMAP), 2012-06-18)Anticorrosive oxide films were successfully prepared on AZ91D magnesium alloy by chemical conversion coating in La (NO3)3 electrolyte with and without NaVO3. The morphologies and chemical composition were characterized ... -
Improvement of Corrosion Resistance of Rare Earth Element (REE)-Based Anodic Oxidation Coating on AZ91D Magnesium Alloy
(Scientific.net, 2012-06-26)Anodization is a useful technique for forming protective films on magnesium alloys and improves its corrosion resistance. Based on the rare earth metal (REE) salt solution, the optimum parameter was selected by comparing ... -
Effect of heat treatment on microstructure and corrosion behavior of Az91d magnesium alloy
(Trans Tech Publications, 2013)An AZ91D ingot in the as-cast condition was homogenized by heat treatment process. Then, the microstructures produced and corrosion behaviour after heat treatment was studied in detail. As-cast AZ91D was recrystallize by ... -
Characteristics of Fe-yttria composites fabricated by powder metallurgy method
(Trans Tech Publications, 2013)This study is focused on fabricating and characterizing iron (Fe) composites prepared by powder metallurgy route reinforced with varying weight of Yttria (Y2O3). Composites were prepared based on 5 wt. % to 15 wt. % of ... -
Comparison study in consolidation of yttria reinforced iron-chromium composites using conventional and microwave sintering technique
(Trans Tech Publications, 2014)This research is focused on studying the density and mechanical properties of iron-chromium composites consolidated by innovative rapid microwave sintering technology against conventionally sintered counterparts using slow ... -
Mechanical properties of microwave sintered 60YSZAl₂0₃/10HAP bioceramics composites
(Trans Tech Publications, 2014)Microwave heating technology promising shorter processing times and less energy consumption beneficial for economic perspective with improved properties and better microstructural control. This study focussed on microwave ... -
Characterization of PM Fe-Cr-Y₂O₃ composites prepared by microwave sintering technology
(Trans Tech Publications, 2014-01)This research is focused on assessing the feasibility of the new and innovative microwave sintering technology for fabricating iron-chromium composites prepared via powder metallurgy route. Accordingly, the microwave ... -
Characteristic and corrosion studies of rare earth (REE) based anodizing on AZ91D magnesium alloy
(Trans Tech Publications, 2014-01)Oxide coatings on AZ91D magnesium alloy were prepared using anodizing technique with 10mA/cm2 current density for 5 minutes in electrolyte containing Mg (NO₃)₂ with NaVO₃ as an additive. The corrosion behaviors of different ... -
Characterization of oxide film by vanadium based anodic oxidation coating
(Trans Tech Publications, 2014-06)An oxide film was prepared on AZ91D magnesium alloy by anodizing in solution containing sodium metavanadate (NaVO3). The corrosion resistance of the AZ91D magnesium alloy was investigated at fixed current density 10 mA/cm2 ... -
Bioactivity behavior of YSZ-Al2O3/10HAP bioceramics composites in simulated body fluid
(Trans Tech Publications Ltd, 2014-06)Yttria-stabilized zirconia and alumina made significant contributions to the development of health care industry, specifically as orthopedic and dental materials. Both bioceramics are nearly inert ceramics, as they do not ... -
A study on biocompatibility of gadolinium based anodizing coating AZ91D magnesium alloy in Simulated Body Fluid (SBF) solution
(Trans Tech Publications, 2014-06)Pure Mg and AZ91D alloy was anodized with and without the gadolinium nitrate Gd(NO3)3 in different concentrations (0.001g/l, 0.025g/l, 0.05g/l, 0.075g/l and 0.09g/l) at a constant current density and treatment time of ... -
Corrosion resistance by sodium metavanadate for AZ91D magnesium alloy
(Trans Tech Publications, 2014-06)An oxide film was prepared on AZ91D magnesium alloy by anodizing in solution containing sodium metavanadate (NaVO3). The corrosion resistance of the substrate was investigated at a fixed current density 10 mA/cm2 for 5 ... -
Electrodeposited ZnO-nanowire/Cu2O photovoltaic device with highly resistive ZnO intermediate layer
(American Chemical Society, 2014-07)Cl-doped ZnO-nanowire (Cl:ZnO-nws)/Cu2O photovoltaic devices were prepared by electrodeposition in aqueous solutions, and the effects of the insertion of the highly resistive ZnO (i-ZnO) layer has been demonstrated by an ... -
Photon-assisted electrochemical construction of <0001>-n-ZnO/<111>-p-Cu2O photovoltaic devices with intermediate TiO2 layer
(The Electrochemical Society (ECS), 2014-10)The <111>-Cu2O/<0001>-ZnO photovoltaic (PV) device has been constructed by a photon-assisted electrochemical reaction in aqueous solutions, and the effect of the insertion of the TiO2 layer prepared by a sol-gel technique ... -
Substrate type 〈111〉-Cu2O/〈0001〉-ZnO photovoltaic device prepared by photo-assisted electrodeposition
(Elsevier B.V., 2015-10)The substrate-type 〈0001〉ZnO/〈111〉Cu2O photovoltaic (PV) device has been constructed by electrodeposition of a 〈111〉-p-Cu2O layer on an Au(111)/Siwafer substrate followed by stacking the n-ZnO layer by electrodeposition ...