논문 국내 국내전문학술지(KCI급) 고전도성 부품용 Al-Cu 주조복합재료의 계면 특성
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2018-06
- 저자명 김정민공동(제1),고세현,김남훈
- 학술지명 한국주조공학회지
- 발행처명 한국주조공학회
- 발행국가 국내
- 논문언어 한국어
홈페이지논문 초록 (Abstract)
To optimize the conductivity and to reduce the weight by as much as possible, Al-Cu composites were prepared through a suction-casting procedure. Pure copper metal foam was infiltrated by melted aluminum with the use of the vacuum, after which warm rolling was conducted to remove several remaining pores at the interface between the Cu foam and the aluminum matrix. Despite the short casting time, significant dissolution of Cu into the melt was observed. Moreover, it was found that various Al-Cu intermetallic compounds arose at the interface during the isothermal heating process after the casting and rolling steps. The average thickness of the Al-Cu intermetallic compound tended to increase in proportion to the heating time. The electrical and thermal conductivity levels of the cast composites were found to be comparatively low, mainly due to the dissolution of the Cu foam and theformation of intermetallics at the interface.