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Preparation and Characterization of Copper/Copper Coated Silicon Carbide Composites
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  • Preparation and Characterization of Copper/Copper Coated Silicon Carbide Composites
  • Preparation and Characterization of Copper/Copper Coated Silicon Carbide Composites
저자명
Chee. Ching Yern,Azmi. Azida
간행물명
International journal of precision engineering and manufacturing
권/호정보
2014년|15권 6호|pp.1215-1221 (7 pages)
발행정보
한국정밀공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

In this study, a thin layer of copper was deposited homogeneous on SiC particles by using the electroless coating technique. SiC reinforcement particle coated with thin layer of copper film was then blended with copper to produce Cu/SiC composite. The Cu matrix and SiC reinforcement (both Cu-coated and non-coated) was first mixed via ball milling method and pressed in a customized mold with 50 kN uniaxial compaction load. The compacted samples were then sintered at $925^{circ}C$ for 2 hours in argon atmosphere. The SEM image showed the deposition of copper layer on SiC particle surface after the coating process. XRD analysis proves the existence of both Cu and SiC constituents in the composite. The XRD result also proves that the copper coated SiC was free of contaminants. The density of the samples was measured by using a density meter and pycnometer. The result showed that the density of the composite decrease with increasing of volume fraction of SiC reinforcement. For Cu-coated SiC reinforcement, the density was slightly higher compared to non-coated SiC reinforcement. Cu-coated SiC reinforcement gave composites of higher hardness, higher compressive yield strength, lower coefficient of thermal expansion, higher thermal conductivity, lower porosity than the composites with non Cu-coated SiC reinforcement.