Gyeongsang National University Shape memory alloys Functional Materials

Gyeongsang National University 형상기억합금 (Shape memory alloys) 경상대학교 재료공학부 남태현 Functional Materials Lab.

Gyeongsang National University History • Au-Cd alloy(1951) • Ti-Ni alloy(1963) : 미국해군연구소팀, “형상 기억효과” 발견 • Cu-Al-Zn(1964) : 형상기억효과는 “열탄성형 마르텐사이트변태”에 기인한다. • 300여종 합금, 1만여건의 특허 • 실용화 가능 합금: Ti. Ni합금, Cu합금, Fe합금 • Polymer, Ceramic shape memory materials Functional Materials Lab.

Gyeongsang National University 형상기억효과 기구 Functional Materials Lab.

Gyeongsang National University 형상기억효과와 초탄성 Functional Materials Lab.

Gyeongsang National University Ti-Ni 형상기억합금 제조 Sponge Ti Pure Ni Melting (VIM, VAR) Cold working (Rolling, Drawing) Wire, Sheet Hot working (Rolling, Swaging, Forging) Intermediate annealing Cold working (Rolling, Drawing) Annealing Functional Materials Lab.

Gyeongsang National University 1방향 형상기억효과의 응용방법 • 오스테나이트 상태 : hard • 마르텐사이트 상태 : soft • Bias coil을 이용 Functional Materials Lab.

Gyeongsang National University Bias coil SMA coil Functional Materials Lab.

Gyeongsang National University SMA coil Bias Coil Functional Materials Lab.

Gyeongsang National University Functional Materials Lab.

Gyeongsang National University Functional Materials Lab.

Gyeongsang National University 암석파쇄기 Functional Materials Lab.

Gyeongsang National University 형상기억합금 구동소자의 응용 Functional Materials Lab.

Gyeongsang National University Functional Materials Lab.

Gyeongsang National University Ti-Ni Thin Film • Microactuator 제조용 Functional Materials Lab.

Gyeongsang National University Functional Materials Lab.

Gyeongsang National University Functional Materials Lab.

Gyeongsang National University 형상기억합금 리본 20㎛ Functional Materials Lab.

Gyeongsang National University 형상기억합금 분말 Functional Materials Lab.