Publication:
Microstructure investigations of in-situ copper tungsten carbide composite by mechanical alloying
Microstructure investigations of in-situ copper tungsten carbide composite by mechanical alloying
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Date
2010-06-09
Authors
Mahani Yusoff
Zuhailawati Hussain
Radzali Othman
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Universiti Malaysia Perlis (UniMAP)
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Abstract
An in-situ composite of copper and tungsten carbide powder was prepared by mechanical alloying of elemental powder. The sample has been milled in a high-energy ball mill for 20 h at different milling speed i.e. 100, 200, 300 and 400 rpm in an argon atmosphere. Investigations in terms of microstructural features and phase constitution of in-situ composites powder were performed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). At higher milling speed, W2C is found to be precipitated with a small amount of WC was formed. Crystallite size of copper is reducing while internal strain is increasing with increasing milling speed.
Description
International Conference on X-Rays and Related Techniques in Research and Industry (ICXRI 2010) jointly organized by Universiti Malaysia Perlis (UniMAP) and X-Ray Application Malaysia Society (XAPP), 9th - 10th June 2010 at Aseania Resort Langkawi, Malaysia.
Keywords
Copper matrix composite,
Mechanical alloying,
In-situ processing,
Carbide formation,
Microstructure