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Selective leaching for the recovery of Copper from PCB
(Universiti Malaysia Perlis, 2009-12-01)
This paper reported on the leaching behavior of printed circuit board (PCB) using a new leaching agent of ammonia-ammonium persulfate, to recover copper. Cu and Zn leaching were found to be fast and reached equilibrium in ...
The effects of solutionizing temperatures on microstructures of as-received A357 alloy
(Universiti malaysia Perlis, 2009-12-01)
Solution treatment has been carried out on as-received A357 alloy at two solution treatment temperatures of 530ºC and 550ºC for 11 hours. The microstructural study was performed by using optical microscope. Optical ...
The influence of sintering temperature to the physical properties of P/M Co-Cr-Mo (F-75) alloy
(Universiti Malaysia Perlis, 2009-12-01)
Co-Cr-Mo (F-75) alloys are commonly used for surgical implants because of their strength, corrosion resistance and biocompatibility. Conventionally, fabrication of the alloys has been established using casting technique. ...
The effect of heat treatment on the anode efficiency of Magnesium sacrificial anode
(Universiti Malaysia Perlis, 2009-12-01)
High efficiency sacrificial anode from Mg alloy is needed as it has higher capability of protecting underground metal structure against corrosion in cathodic protection. Solution treatment was applied to Mg sacrificial ...
Effect of alloying elements (Ni and Cr) on density and hardness of Co alloy fabricated by powder metallurgy
(Universiti Malaysia Perlis, 2009-12-01)
Influences of Ni and Cr addition on the properties of powder metallurgy Co base alloys were investigated. The alloys were produced by powder metallurgy technique and sintered under argon atmosphere. Scanning electron ...
Aluminium–Polymer ABS product
(Universiti Malaysia Perlis, 2009-12-01)
Material used for aluminium product usually made of aluminium scrap. Currently, the price of aluminium scrap is increased. It is necessary to minimize the cost of production by reducing the weight of the aluminium product ...
Characterization of F75-HAP produced by Powder Metallurgy method
(Universiti Malaysia Perlis, 2009-12-01)
This research was carried out to study the properties of Co-Cr-Mo filled with different composition of HAP that have been prepared by powder metallurgy method. The raw materials used in this research were Co-Cr-Mo powder ...