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기계적 합금화 방법에 의한 Cu-C계 복합금속분말의 제조 및 미세구조 제어 특성
이광민 한국분말야금학회 1997 한국분말재료학회지 (KPMI) Vol.4 No.1
It was investigated whether mechanical alloying (MA) processing could be more effective to the formation of metallic composite powder in Cu-C system. Elemental powder mixtures of Cu-70vo1.%C were mechanically alloyed with an attritor in an argon atmosphere and microstructural evolution was examined by X-ray diffraction analysis, scanning electron microscopy and transmission electron microscopy. It has been found that even with the high volume fraction of immiscible graphite in Cu-C system, the refinement with a few ten nanometer size as well as the highly uniform distribution of copper phases have been achieved by the MA processing.