Fabrication Of Alumina-Copper Composites By Using Resistive Sintering Method

Muhammad Danial Azraei, Azlan (2019) Fabrication Of Alumina-Copper Composites By Using Resistive Sintering Method. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The aim of this study is to evaluate the mechanical properties and physical properties of the compositions Alumina-Copper for various application in industries. The ceramic material have a few characteristics that made it widely used in the industries especially in the application of cutting tool. However, a few weaknesses have been detected which limits this application to go further. A few samples will be made with different compositions with alumina as the based ceramic materials. With different copper ratio, a few tests will be conduct to analyze the effect of the changes of ratio could affect the mechanical and physical properties of the composition. The crucial starts is to produce the green body of these powders as it require a lot of accuracy in terms of particle size, weight, types and grades. Once the green body is done, these samples will undergoes a few process such as pre-compaction, cold isostatic press and finally a new approach on sintering method which is resistive sintering or the commercial names called ECAS (Electrical activation sintering). There are a few things that differentiate ECAS with normal sintering especially the mechanisms. Thus, this study is to evaluate how the possibilities of success by applied current and pressure could sinter the compositions of alumina-copper. As we know, copper is a good electrical conductor and the process of sinter have high percentage to success, but does this application can reduce the time and energy compare to the normal sintering which took long soaking time and high energy required?

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