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Changes of Fe matrix's lattice constant during liquid phase sintering of Fe-Cu-C compacts by x-ray diffraction techniques

Mustapha, M. and Masrom, A. K. and Mohammad, M. and Meh, B. and Harun, Zawati (2002) Changes of Fe matrix's lattice constant during liquid phase sintering of Fe-Cu-C compacts by x-ray diffraction techniques. Malaysian Journal of Science, 21 (A). pp. 59-64. ISSN 13943065

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Abstract

The dissolution of graphite and copper during sintering of PM steels prepared from iron, copper and graphite powder mixes were studied using X-Ray Diffraction method. This paper present the investigation carried out to study the changes of iron's lattice constant during liquid phase sintering of the compacts. The electrical conductivity measurement method was also used for determining the extent of carbon and copper dissolution and its influence on the formation of sintered compacts. In the experiment, the Fe-Cu-C powders were compacted into a pellets using hand press machine and were then sintered in a 5% HZ + 95% N2 gas atmosphere at different sintering temperature in the range of 400 "C and 1200 "C. The effect of sintering parameters on the mechanical properties of the sintered compacts was studied to find a correlation between mechanical behaviour, microstructure, and the resistivity in order to develop non-destructive testing method. It was observed that measurement of Fe matrix's lattice constant and electrical conductivity of sintered compacts could he a viable method in studying all stages of sintering process.

Item Type: Article
Uncontrolled Keywords: lattice constant; electrical conductivity; liquid phase sintering; microstructure
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Normajihan Abd. Rahman
Date Deposited: 24 Oct 2016 06:53
Last Modified: 24 Oct 2016 06:53
URI: http://eprints.uthm.edu.my/id/eprint/8242
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