KR20200040751A - 마그네슘계 열전 변환 재료, 마그네슘계 열전 변환 소자, 및 마그네슘계 열전 변환 재료의 제조 방법 - Google Patents
마그네슘계 열전 변환 재료, 마그네슘계 열전 변환 소자, 및 마그네슘계 열전 변환 재료의 제조 방법 Download PDFInfo
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- KR20200040751A KR20200040751A KR1020207002996A KR20207002996A KR20200040751A KR 20200040751 A KR20200040751 A KR 20200040751A KR 1020207002996 A KR1020207002996 A KR 1020207002996A KR 20207002996 A KR20207002996 A KR 20207002996A KR 20200040751 A KR20200040751 A KR 20200040751A
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Abstract
Description
도 2 는, 본 발명의 일 실시형태인 열전 변환 재료의 단면 관찰 결과를 나타내는 도면이다.
도 3 은, 본 발명의 일 실시형태인 열전 변환 재료의 제조 방법의 플로도이다.
도 4 는, 본 발명의 일 실시형태인 열전 변환 재료의 제조 방법에서 사용되는 소결 장치의 일례를 나타내는 단면도이다.
도 5A 는 실시예에 있어서, 마그네슘계 열전 변환 재료의 단면을 EPMA 관찰한 결과를 예시하는 사진이다.
도 5B 는 실시예에 있어서, 마그네슘계 열전 변환 재료의 단면을 EPMA 관찰한 결과를 예시하는 사진이다.
도 6 은, 실시예에 있어서, Si 리치 금속상을 오거 전자 분광 분석한 결과를 나타내는 도면이다.
11 : 마그네슘계 열전 변환 재료
15 : Si 리치 금속상
19a, 19b : 전극
Claims (6)
- 마그네슘계 화합물의 소결체로 이루어지는 마그네슘계 열전 변환 재료로서,
상기 소결체의 단면에 있어서, 마그네슘계 화합물 입자의 결정 입계에, 상기 마그네슘계 화합물 입자의 입내보다 Si 농도가 높은 Si 리치 금속상이 편재되어 있고,
상기 Si 리치 금속상이 차지하는 면적률이 2.5 % 이상 10 % 이하의 범위 내가 되고,
면적이 1 ㎛2 이상인 상기 Si 리치 금속상의 개수 밀도가 1800 개/㎟ 이상 14000 개/㎟ 이하의 범위 내로 되어 있는 것을 특징으로 하는 마그네슘계 열전 변환 재료. - 제 1 항에 있어서,
상기 마그네슘계 화합물은, MgxSiy, Mg2Si1-xGex, Mg2Si1-xSnx 중 어느 것인 것을 특징으로 하는 마그네슘계 열전 변환 재료. - 제 1 항 또는 제 2 항에 있어서,
Li, Na, K, B, Al, Ga, In, N, P, As, Sb, Bi, Ag, Cu, Y 중, 적어도 1 종 이상을 도펀트로서 포함하는 것을 특징으로 하는 마그네슘계 열전 변환 재료. - 제 1 항 내지 제 3 항 중 어느 한 항에 기재된 마그네슘계 열전 변환 재료와, 상기 마그네슘계 열전 변환 재료의 일방의 면 및 대향하는 타방의 면에 각각 접합된 전극을 구비한 것을 특징으로 하는 마그네슘계 열전 변환 소자.
- 마그네슘계 화합물의 소결체로 이루어지는 마그네슘계 열전 변환 재료의 제조 방법으로서,
마그네슘계 화합물의 원료분에 실리콘 산화물을 혼합하여 소결 원료분을 얻는 소결 원료분 형성 공정과, 상기 소결 원료분을 가압하면서 가열하여 소결체를 형성하는 소결 공정을 구비하고 있고,
상기 소결 공정에서는, 상기 소결 원료분을 1 쌍의 전극부로 가압하면서 통전하는 통전 가열법을 사용하고 있고, 소결시에는 1 쌍의 전극부의 극성을 소정의 시간 간격으로 변경하는 것을 특징으로 하는 마그네슘계 열전 변환 재료의 제조 방법. - 제 5 항에 있어서,
상기 소결 공정에서는, 상기 소결 원료분의 외주측에 배치된 히터에 의해, 추가로 상기 소결 원료분을 가열하는 것을 특징으로 하는 마그네슘계 열전 변환 재료의 제조 방법.
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| JP2017156729A JP6981094B2 (ja) | 2017-08-15 | 2017-08-15 | マグネシウム系熱電変換材料、マグネシウム系熱電変換素子、及び、マグネシウム系熱電変換材料の製造方法 |
| PCT/JP2018/018373 WO2019035253A1 (ja) | 2017-08-15 | 2018-05-11 | マグネシウム系熱電変換材料、マグネシウム系熱電変換素子、及び、マグネシウム系熱電変換材料の製造方法 |
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| JP7506388B2 (ja) * | 2019-12-18 | 2024-06-26 | 株式会社テックスイージー | 熱電素子の製造方法 |
| KR20220115801A (ko) * | 2019-12-24 | 2022-08-18 | 미쓰비시 마테리알 가부시키가이샤 | 열전 변환 재료, 열전 변환 소자, 및, 열전 변환 모듈 |
| JP7592282B2 (ja) * | 2020-09-16 | 2024-12-02 | 株式会社テックスイージー | 熱電素子及びその製造方法 |
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| Publication number | Publication date |
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| TWI768045B (zh) | 2022-06-21 |
| WO2019035253A1 (ja) | 2019-02-21 |
| JP6981094B2 (ja) | 2021-12-15 |
| US11462671B2 (en) | 2022-10-04 |
| TW201910266A (zh) | 2019-03-16 |
| EP3671870A1 (en) | 2020-06-24 |
| KR102409289B1 (ko) | 2022-06-14 |
| EP3671870A4 (en) | 2021-05-12 |
| JP2019036623A (ja) | 2019-03-07 |
| CN110892537A (zh) | 2020-03-17 |
| EP3671870B1 (en) | 2022-10-05 |
| US20200227610A1 (en) | 2020-07-16 |
| CN110892537B (zh) | 2023-11-07 |
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