Development of copper-based metal matrix composites: An analysis by SEM, EDS and XRD

Magazine
  • 2014
  • May

Syed Nasimul Alam and Harshpreet Singh

Department of Metallurgical and Materials Engineering, National Institute of Technology Rourkela, Rourkela, Orissa, India

Wednesday, June 25, 2014 - 00:00
We have synthesised Cu-based metal matrix composites using different reinforcements such as E-glass fibre and SiC. Composites with reinforcement contents of 10, 20, 30, 40 vol. % were developed by a powder metallurgy route. The mechanical properties of pure Cu and the composites prepared were studied before and after sintering at 900oC for 1 hour. Scanning electron microscopy and EDS were used for microstructural analysis of the matrix and the reinforcement. Vickers hardness testing showed that the hardness of the composite increased with the vol. % of E-glass fibre and SiC in the Cu matrix. Cu powder was milled for 20 h to form nanostructured Cu and heated up to 600oC to study the growth characteristics of nanostructured Cu. The 20 h milled Cu powder was examined using XRD, HRTEM and a particle size analyzer.
 
Microscopy and Analysis 28(4):S8-S13 (AP), May 2014
 
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