한국재료학회지 (Korean Journal of Materials Research)

  • 제13권6호
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  • Pages.352-359
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  • 2003
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  • 1225-0562(pISSN)
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  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
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Spark Plasma Sintering을 이용한 Cu-26.7Zn-4.05Al(wt.%) 형상기억합금의 제조

Manufacturing of Cu-26.7Zn-4.05Al(wt.%) Shape Memory Alloy Using Spark Plasma Sintering

  • 박노진 (금오공과대학교 신소재시스템공학부) ;
  • 이인성 (금오공과대학교 신소재시스템공학부) ;
  • 조경식 (금오공과대학교 신소재시스템공학부) ;
  • 김성진 (금오공과대학교 신소재시스템공학부)
  • Park, No-Jin (School of Advanced Materials and Systems Engineering, Kumoh National Institute of Technology) ;
  • Lee, In-Sung (School of Advanced Materials and Systems Engineering, Kumoh National Institute of Technology) ;
  • Cho, Kyeong-Sik (School of Advanced Materials and Systems Engineering, Kumoh National Institute of Technology) ;
  • Kim, Sung-Jin (School of Advanced Materials and Systems Engineering, Kumoh National Institute of Technology)
  • 발행 : 2003.06.01
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초록

In order to control the grain size, the spark plasma sintering technique is applied for the manufacturing of Cu-26.7Al-4.05AI(wt.%) shape memory alloy with pure Cu, Zn, and Al element powders. The sintering processes were carried out under different atmospheres. The sintered bodies were denser under Ar or Ar＋4%$H_2$gas atmosphere than under vacuum. With use of small-sized powders, a very small average grain size of 2∼3 $\mu\textrm{m}$ was obtained, but the single phase was not formed. With the large-sized powders the single austenitic phase was observed with the average grain size of $70∼72\mu\textrm{m}$. When the different size of raw powders was mixed, it is confirmed that the average grain size of the manufactured alloys was 15 $\mu\textrm{m}$ with single austenitic phase, but the distribution of grain size was not uniform.

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