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The Effect of Cu2O Layer on the Properties of Cu-SiC Composites Using Liquid Phase Sintering Technique | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 22, Issue 5, 2011, Pages 277-283 | ||
| Author | ||
| Samir B. Younis | ||
| Abstract | ||
| SiC particulate-reinforced (25 vol%) copper composites were fabricated using liquid phase sintering in (900,1000,1100° C) at argon atmosphere of electric furance. Density, porosity test were performed Characterization of the composites sintered were conducted by XRD and microstructure analysis. It was found that Cu2O islands formed on the surface of copper crystallites in the coated particles during sintering at different temperatures. The oxide layer Cu2O was increased on copper, and this led to porous composites with flocculation of SiC grains and segregation from coagulated copper blocks when the temperature was increased. It was found that decreasing in density and increasing in porosity with temperature . Vicker microhardness, dry sliding wear tests of Cu–SiCp composites were carried out with a typical experimental plan of simultaneous variation of loads (5,10)N . Loosing in composite hardness, moreover wear rate will be increased with highest temperatures. | ||
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