JP6211248B2 - MgAlB14系の熱電材料 - Google Patents
MgAlB14系の熱電材料 Download PDFInfo
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- JP6211248B2 JP6211248B2 JP2012079845A JP2012079845A JP6211248B2 JP 6211248 B2 JP6211248 B2 JP 6211248B2 JP 2012079845 A JP2012079845 A JP 2012079845A JP 2012079845 A JP2012079845 A JP 2012079845A JP 6211248 B2 JP6211248 B2 JP 6211248B2
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- thermoelectric material
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- 239000000463 material Substances 0.000 title claims description 84
- 239000000203 mixture Substances 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 21
- 229910052796 boron Inorganic materials 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 13
- 229910020068 MgAl Inorganic materials 0.000 claims description 8
- 238000002441 X-ray diffraction Methods 0.000 claims description 7
- 239000007858 starting material Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000000654 additive Substances 0.000 description 43
- 230000000996 additive effect Effects 0.000 description 43
- 239000000523 sample Substances 0.000 description 42
- 238000005259 measurement Methods 0.000 description 31
- 239000002245 particle Substances 0.000 description 11
- 230000001747 exhibiting effect Effects 0.000 description 10
- 239000000126 substance Substances 0.000 description 6
- 239000002918 waste heat Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 230000005676 thermoelectric effect Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052714 tellurium Inorganic materials 0.000 description 2
- 229910016570 AlCu Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910017680 MgTe Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- BWHLPLXXIDYSNW-UHFFFAOYSA-N ketorolac tromethamine Chemical compound OCC(N)(CO)CO.OC(=O)C1CCN2C1=CC=C2C(=O)C1=CC=CC=C1 BWHLPLXXIDYSNW-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 purity 99.9 mass% Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Description
本発明のMgAlB14系のn−型熱電材料の実施例1の作製方法について説明する。
また、本発明のMgAlB14系のn−型熱電材料の実施例2の作製方法について説明する。
Claims (6)
- Mg,AlおよびBを主成分とするMgAlB14系の熱電材料であって、
MgxAlxB14(x=1.00〜1.25)またはMgyAly−0.01B14(y=1.04〜1.08)の組成の出発原料粉の焼結体からなり、
X線回折測定で求められるMgAlB14の格子体積が489.1×10−3nm3より大きく、
50℃から800℃の温度範囲における、所定の温度領域において、ゼーベック係数の値が負の値を示すことを特徴とするMgAlB14系の熱電材料。 - MgxAlxB14(x=1.25)またはMgyAly−0.01B14(y=1.06)の組成の出発原料粉の焼結体からなり、
50℃から800℃の温度範囲において、ゼーベック係数の値が常に負の値を示すことを特徴とする請求項1に記載のMgAlB14系の熱電材料。 - 前記MgyAly−0.01B14(y=1.06)の組成の出発原料粉の焼結体からなる熱電材料中に、C,Cu,Ni,SiまたはTeが添加されていることを特徴とする請求項1に記載のMgAlB14系の熱電材料。
- 前記MgyAly−0.01B14(y=1.06)の組成の出発原料粉の焼結体からなる熱電材料中には、Siが0.1〜0.5at%の割合で含まれており、
50℃から800℃の温度範囲において、ゼーベック係数の値が常に負の値を示すことを特徴とする請求項3に記載のMgAlB14系の熱電材料。 - 酸化物相を含むことを特徴とする請求項1乃至請求項4のいずれか1項に記載のMgAlB14系の熱電材料。
- 前記酸化物相が、少なくともMgAl2O4からなることを特徴とする請求項5に記載のMgAlB14系の熱電材料。
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JP2012079845A JP6211248B2 (ja) | 2012-03-30 | 2012-03-30 | MgAlB14系の熱電材料 |
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JP2012079845A JP6211248B2 (ja) | 2012-03-30 | 2012-03-30 | MgAlB14系の熱電材料 |
Publications (2)
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JP2013211370A JP2013211370A (ja) | 2013-10-10 |
JP6211248B2 true JP6211248B2 (ja) | 2017-10-11 |
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Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6099605A (en) * | 1999-06-07 | 2000-08-08 | Iowa State University Research Foundation, Inc. | Superabrasive boride and a method of preparing the same by mechanical alloying and hot pressing |
DE19955788A1 (de) * | 1999-11-19 | 2001-05-23 | Basf Ag | Thermoelektrisch aktive Materialien und diese enthaltende Generatoren |
JP4106586B2 (ja) * | 2001-10-19 | 2008-06-25 | 住友電気工業株式会社 | 硼化物焼結体とその製造方法 |
US6921422B2 (en) * | 2002-10-29 | 2005-07-26 | Iowa State University Research Foundation, Inc. | Ductile binder phase for use with A1MgB14 and other hard materials |
JP4756259B2 (ja) * | 2004-10-08 | 2011-08-24 | タマティーエルオー株式会社 | M−Al−B組成を有する単結晶の製造方法および該製造方法により製造されたM−Al−B組成を有する単結晶 |
JP2006124728A (ja) * | 2004-10-26 | 2006-05-18 | National Institute Of Advanced Industrial & Technology | 活性金属を含む金属材料の製造方法、製造装置及びこの製造方法により得られる活性金属を含む金属材料 |
KR20090107491A (ko) * | 2006-12-20 | 2009-10-13 | 소와 케이디이 가부시키가이샤 | 열전변환 재료, 그 제조 방법 및 열전변환 소자 |
JP5773341B2 (ja) * | 2011-03-25 | 2015-09-02 | 国立研究開発法人物質・材料研究機構 | 無機化合物粒子およびその製造方法 |
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