KR101037884B1 - Cr-Cu 합금, 그 제조 방법, 반도체용 방열판 및 반도체용 방열 부품 - Google Patents
Cr-Cu 합금, 그 제조 방법, 반도체용 방열판 및 반도체용 방열 부품 Download PDFInfo
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Abstract
Description
Claims (20)
- Cr 분말을 사용한 분말 야금에서 얻어진 Cr-Cu 합금으로서,Cr 함유량이 30 질량% 초과 80 질량% 이하이고, 또한,Cu 매트릭스와 원료의 Cr 분말에서 유래하는 편평한 Cr 상으로 이루어지고,상기 원료의 Cr 분말에서 유래하는 편평한 Cr 상의 평균 애스펙트비가 1.0 초과 100 미만인 Cr-Cu 합금.
- 제 1 항에 있어서,상기 Cr 분말의 입도가 10㎛ 이상, 250㎛ 이하인 Cr-Cu 합금.
- 제 1 항에 있어서,상기 Cu 매트릭스 중에, 장경이 100㎚ 이하이고 애스펙트비가 10 미만의 입자상인, 미세한 제 2 Cr 상이 석출되고, 상기 제 2 Cr 상의 밀도가 20 개/㎛2 이상인 Cr-Cu 합금.
- 제 2 항에 있어서,상기 Cu 매트릭스 중에, 장경이 100㎚ 이하이고 애스펙트비가 10 미만의 입자상인, 미세한 제 2 Cr 상이 석출되고, 상기 제 2 Cr 상의 밀도가 20 개/㎛2 이상인 Cr-Cu 합금.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 편평한 Cr 상이 두께 방향 1㎜ 당 200 개 이하 존재하는 Cr-Cu 합금.
- 제 1 항 내지 제 4 항 중 어느 한 항에 기재된 Cr-Cu 합금을 사용한 반도체용 방열판.
- 제 1 항 내지 제 4 항 중 어느 한 항에 기재된 Cr-Cu 합금을 사용한 반도체용 방열 부품.
- Cr 함유량이 30 질량% 초과 80 질량% 이하이고, 잔부가 Cu 및 불가피적 불순물로 이루어지고, 또한, Cu 매트릭스와 원료의 Cr 분말에서 유래하는 Cr 상을 갖는 소재 Cr-Cu 합금에,냉간 압연에서 10% 이상의 압하를 가함으로써, 상기 원료의 Cr 분말에서 유래하는 Cr 상의 평균 애스펙트비를 1.0 초과 100 미만으로 하는 단계를 갖는 Cr-Cu 합금의 제조 방법.
- 제 8 항에 있어서,Cr 분말을 원료로 하여 상기 소재 Cr-Cu 합금을 제조하는 단계를 추가로 갖는 Cr-Cu 합금의 제조 방법.
- 제 9 항에 있어서,상기 Cr 분말의 입도가 10㎛ 이상, 250㎛ 이하인 Cr-Cu 합금의 제조 방법.
- Cr 분말을 소결시켜 다공질체로 하고, 상기 다공질체에 Cu 를 용침시켜, Cr 함유량을 30 질량% 초과 80 질량% 이하로 한 용침체를 얻는 소결·용침 공정과,상기 용침체에 냉간 압연에서 10% 이상의 압하를 가해 압연재를 얻는 압연 공정을 갖는 Cr-Cu 합금의 제조 방법.
- 제 11 항에 있어서,상기 압연재를 300 ∼ 900℃ 의 온도 범위에서 가열하는 열처리 공정을 추가로 갖는 Cr-Cu 합금의 제조 방법.
- 제 11 항에 있어서,상기 소결·용침 공정에서 얻은 용침체를 300 ∼ 1050℃ 의 온도 범위에서 가열하는 공정을, 상기 압연 공정 전에 갖는 Cr-Cu 합금의 제조 방법.
- 제 11 항 내지 제 13 항 중 어느 한 항에 있어서,상기 Cr 분말의 입도가 10㎛ 이상, 250㎛ 이하인 Cr-Cu 합금의 제조 방법.
- (i) Cr 분말과 Cu 분말을 혼합하고 성형하여 소결시키고, 또한 Cu 를 용침시켜, Cr 함유량을 30 질량% 초과 80 질량% 이하로 한 용침체를 얻는 소결·용침 공 정,혹은,(ⅱ) Cr 분말과 Cu 분말을 혼합하고 성형하여 소결시키고, Cr 함유량을 30 질량% 초과 80 질량% 이하로 한 용침체를 얻는 소결·용침 공정 중 어느 하나의 소결·용침 공정을 갖고, 또한,상기 용침체에 냉간 압연에서 10% 이상의 압하를 가해 압연재를 얻는 압연 공정을 갖는 Cr-Cu 합금의 제조 방법.
- 제 15 항에 있어서,상기 압연재를 300 ∼ 900℃ 의 온도 범위에서 가열하는 열처리 공정을 추가로 갖는 Cr-Cu 합금의 제조 방법.
- 제 15 항에 있어서,상기 소결·용침 공정에서 얻은 용침체를 300 ∼ 1050℃ 의 온도 범위에서 가열하는 공정을 상기 압연 공정 전에 갖는 Cr-Cu 합금의 제조 방법.
- 제 15 항 내지 제 17 항 중 어느 한 항에 있어서,상기 Cr 분말의 입도가 10㎛ 이상, 250㎛ 이하인 Cr-Cu 합금의 제조 방법.
- 제 5 항에 기재된 Cr-Cu 합금을 사용한 반도체용 방열판.
- 제 5 항에 기재된 Cr-Cu 합금을 사용한 반도체용 방열 부품.
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