KR20070065477A - BiTe계 n형 열전재료의 제조방법 - Google Patents
BiTe계 n형 열전재료의 제조방법 Download PDFInfo
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- KR20070065477A KR20070065477A KR1020050125920A KR20050125920A KR20070065477A KR 20070065477 A KR20070065477 A KR 20070065477A KR 1020050125920 A KR1020050125920 A KR 1020050125920A KR 20050125920 A KR20050125920 A KR 20050125920A KR 20070065477 A KR20070065477 A KR 20070065477A
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- 239000000463 material Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 100
- 238000002156 mixing Methods 0.000 claims abstract description 39
- 239000001257 hydrogen Substances 0.000 claims abstract description 23
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 23
- 238000005245 sintering Methods 0.000 claims abstract description 23
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910002909 Bi-Te Inorganic materials 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 11
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000005297 pyrex Substances 0.000 claims abstract description 10
- 239000010453 quartz Substances 0.000 claims abstract description 10
- 230000009467 reduction Effects 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052711 selenium Inorganic materials 0.000 claims abstract description 5
- 239000002019 doping agent Substances 0.000 claims abstract description 4
- 238000011049 filling Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 7
- 238000005538 encapsulation Methods 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000003708 ampul Substances 0.000 claims description 3
- 239000012300 argon atmosphere Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000011812 mixed powder Substances 0.000 abstract description 2
- 238000003801 milling Methods 0.000 abstract 2
- 238000013019 agitation Methods 0.000 abstract 1
- KWQLUUQBTAXYCB-UHFFFAOYSA-K antimony(3+);triiodide Chemical compound I[Sb](I)I KWQLUUQBTAXYCB-UHFFFAOYSA-K 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 23
- 230000007423 decrease Effects 0.000 description 8
- 239000013078 crystal Substances 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000005619 thermoelectricity Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000002109 crystal growth method Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
- B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/02—Nitrogen
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- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/10—Inert gases
- B22F2201/11—Argon
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- Powder Metallurgy (AREA)
Abstract
Description
Claims (7)
- Bi, Te, Se의 원소 및 SbI3 도펀트를 n형 조성에 맞도록 칭량하여 석영관에 장입한 후 진공봉입하는 진공봉입단계(S1);상기 봉입단계(S1)를 거쳐 봉입된 석영관을 교반로에 투입하여 교반한 후, 노냉하여 잉고트를 제조하는 잉고트 제조단계(S2);상기 잉고트 제조단계(S2)를 단계를 거쳐 제조된 잉고트를 파쇄하는 파쇄단계(S3);상기 파쇄단계(S3)를 거쳐 파쇄된 분말을 분쇄하는 분쇄단계(S4);상기 분쇄단계를 거쳐 분쇄된 분말을 200~300㎛의 조대분말과, 20~45㎛ 이하의 미세분말로 분리하는 분급단계(S5);상기 분급단계(S5)를 거쳐 분급된 분말을 파이렉스 튜브에 장입하고, 수소를 채워 봉입한 다음, 소정의 온도로 가열 및 유지하여 분말의 수소를 환원시키는 수 환원단계(S6);상기 수소환원단계(S6)를 거친 조대분말과 미세분말을 혼합하여 앰플에 장입하고, 진공봉입한 후, 3차원 혼합기를 이용하여 혼합하는 혼합단계(S7);상기 혼합단계(S7)를 거쳐 혼합된 분말을 방전플라즈마 소결장비를 이용해 소결하는 소결단계(S8);로 이루어진 것을 특징으로 하는 Bi-Te계 n형 열전재료의 제조방법.
- 제 1 항에 있어서,상기 혼합단계(S7)는, 60~80wt.%의 조대분말과 20~40wt.%의 미세분말을 혼합하는 것을 특징으로 하는 Bi-Te계 n형 열전재료의 제조방법.
- 제 1 항에 있어서,상기 파쇄단계(S3)는, 질소분위기하의 그로브박스내에서 알루미나 유발을 이용하여 파쇄하는 것을 특징으로 하는 Bi-Te계 n형 열전재료의 제조방법.
- 제 1 항에 있어서,상기 분쇄단계(S4)는, 아르곤 분위기하에서 볼밀을 이용하여 분쇄하는 것을 특징으로 하는 Bi-Te계 n형 열전재료의 제조방법.
- 제 1 항에 있어서,상기 소결단계(S8)는, 10-3 torr 이하의 진공중에서, 420~460℃의 온도 및 20~40MPa의 압력으로 진행하는 것을 특징으로 하는 Bi-Te계 n형 열전재료의 제조방 법.
- 제 1 항에 있어서,상기 잉고트 제조단계(S2)는, 700~750℃에서 10회/분의 속도로 2시간 동안 교반한 후, 노냉하는 것을 특징으로 하는 Bi-Te계 n형 열전재료의 제조방법.
- 제 1 항에 있어서,상기 수소환원단계(S6)는, 분급된 분말이 장입된 상기 파이렉스 튜브에 수소를 300~500 torr로 채워 봉입하고, 340~380℃에서 10~15시간동안 유지하는 것을 특징으로 하는 Bi-Te계 n형 열전재료의 제조방법.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101068957B1 (ko) * | 2010-01-22 | 2011-09-29 | 한국기계연구원 | 열전재료 세척장치 및 이를 이용한 열전재료 세척방법 |
KR101323319B1 (ko) * | 2012-01-09 | 2013-10-29 | 한국전기연구원 | 은이 첨가된 비스무스-텔레리움-셀레니움계 열전재료의 제조방법 |
KR20140047401A (ko) * | 2012-10-12 | 2014-04-22 | 엘지이노텍 주식회사 | 열전재료 및 그 제조방법 |
WO2016171346A1 (ko) * | 2015-04-21 | 2016-10-27 | 희성금속 주식회사 | 저항 발열체를 이용한 Bi-Te계 열전 재료의 제조 방법 |
WO2017069304A1 (ko) * | 2015-10-22 | 2017-04-27 | 희성금속 주식회사 | 열전 재료의 제조방법 및 이로부터 제조된 열전 재료 |
WO2018139693A1 (ko) * | 2017-01-26 | 2018-08-02 | 희성금속 주식회사 | 입도 제어에 따른 Bi-Te계 열전 재료의 제조 방법 및 이로부터 제조된 Bi-Te계 열전 재료 |
KR20190119744A (ko) | 2018-04-13 | 2019-10-23 | 하나엘티주식회사 | 저 산소 열전 분말 및 그 소결체 제조 방법 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100991142B1 (ko) | 2008-05-06 | 2010-11-01 | 한국생산기술연구원 | ECAP법에 의한 Bi-Te계 열전재료의 제조방법 |
KR101395565B1 (ko) * | 2012-09-17 | 2014-05-15 | 한국세라믹기술원 | 비스무트 텔루라이드계 열전재료의 제조방법 |
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JPH0768563B2 (ja) | 1991-05-27 | 1995-07-26 | 大同特殊鋼株式会社 | 硬質粒子分散合金粉末の製造方法 |
JP2000106460A (ja) * | 1998-07-27 | 2000-04-11 | Komatsu Ltd | 熱電半導体材料および熱電半導体材料の製造方法 |
KR20030092692A (ko) * | 2002-05-30 | 2003-12-06 | 이지환 | 열전소자와 전극이 일체화된 열전재료의 제조 방법 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101068957B1 (ko) * | 2010-01-22 | 2011-09-29 | 한국기계연구원 | 열전재료 세척장치 및 이를 이용한 열전재료 세척방법 |
KR101323319B1 (ko) * | 2012-01-09 | 2013-10-29 | 한국전기연구원 | 은이 첨가된 비스무스-텔레리움-셀레니움계 열전재료의 제조방법 |
KR20140047401A (ko) * | 2012-10-12 | 2014-04-22 | 엘지이노텍 주식회사 | 열전재료 및 그 제조방법 |
WO2016171346A1 (ko) * | 2015-04-21 | 2016-10-27 | 희성금속 주식회사 | 저항 발열체를 이용한 Bi-Te계 열전 재료의 제조 방법 |
WO2017069304A1 (ko) * | 2015-10-22 | 2017-04-27 | 희성금속 주식회사 | 열전 재료의 제조방법 및 이로부터 제조된 열전 재료 |
WO2018139693A1 (ko) * | 2017-01-26 | 2018-08-02 | 희성금속 주식회사 | 입도 제어에 따른 Bi-Te계 열전 재료의 제조 방법 및 이로부터 제조된 Bi-Te계 열전 재료 |
KR20190119744A (ko) | 2018-04-13 | 2019-10-23 | 하나엘티주식회사 | 저 산소 열전 분말 및 그 소결체 제조 방법 |
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