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1. (WO2018021540) THERMOELECTRIC MATERIAL, METHOD FOR PREPARING THERMOELECTRIC MATERIAL, THERMOELECTRIC CONVERSION ELEMENT, AND THERMOELECTRIC CONVERSION MODULE
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Pub. No.: WO/2018/021540 International Application No.: PCT/JP2017/027476
Publication Date: 01.02.2018 International Filing Date: 28.07.2017
IPC:
H01L 35/14 (2006.01) ,B22F 3/14 (2006.01) ,B22F 3/24 (2006.01) ,B22F 9/04 (2006.01) ,C22C 12/00 (2006.01) ,C22C 13/00 (2006.01) ,C22C 27/00 (2006.01) ,C22C 30/04 (2006.01) ,H01L 35/20 (2006.01) ,H01L 35/34 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
35
Thermoelectric devices comprising a junction of dissimilar materials, i.e. exhibiting Seebeck or Peltier effect with or without other thermoelectric effects or thermomagnetic effects; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
12
Selection of the material for the legs of the junction
14
using inorganic compositions
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
12
Both compacting and sintering
14
simultaneously
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
24
After-treatment of workpieces or articles
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
9
Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
02
using physical processes
04
starting from solid material, e.g. by crushing, grinding or milling
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
12
Alloys based on antimony or bismuth
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
13
Alloys based on tin
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
27
Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/ or C22C16/130
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
30
Alloys containing less than 50% by weight of each constituent
04
containing tin or lead
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
35
Thermoelectric devices comprising a junction of dissimilar materials, i.e. exhibiting Seebeck or Peltier effect with or without other thermoelectric effects or thermomagnetic effects; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
12
Selection of the material for the legs of the junction
14
using inorganic compositions
20
comprising metals only
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
35
Thermoelectric devices comprising a junction of dissimilar materials, i.e. exhibiting Seebeck or Peltier effect with or without other thermoelectric effects or thermomagnetic effects; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
34
Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
Applicants:
株式会社 東芝 KABUSHIKI KAISHA TOSHIBA [JP/JP]; 東京都港区芝浦一丁目1番1号 1-1, Shibaura 1-chome, Minato-ku, Tokyo 1058001, JP
東芝マテリアル株式会社 TOSHIBA MATERIALS CO., LTD. [JP/JP]; 神奈川県横浜市磯子区新杉田町8番地 8, Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa 2358522, JP
Inventors:
山本 慎一 YAMAMOTO, Shinichi; JP
岡村 正巳 OKAMURA, Masami; JP
中島 信昭 NAKASHIMA, Nobuaki; JP
溝部 雅恭 MIZOBE, Masanori; JP
Agent:
蔵田 昌俊 KURATA, Masatoshi; JP
野河 信久 NOGAWA, Nobuhisa; JP
河野 直樹 KOHNO, Naoki; JP
Priority Data:
2016-14810428.07.2016JP
Title (EN) THERMOELECTRIC MATERIAL, METHOD FOR PREPARING THERMOELECTRIC MATERIAL, THERMOELECTRIC CONVERSION ELEMENT, AND THERMOELECTRIC CONVERSION MODULE
(FR) MATÉRIAU THERMOÉLECTRIQUE, PROCÉDÉ DE PRÉPARATION DE MATÉRIAU THERMOÉLECTRIQUE, ÉLÉMENT DE CONVERSION THERMOÉLECTRIQUE ET MODULE DE CONVERSION THERMOÉLECTRIQUE
(JA) 熱電材料、熱電材料の製造方法、熱電変換素子、および熱電変換モジュール
Abstract:
(EN) Thermoelectric materials according to an embodiment of the present invention are a plurality of p-type and n-type thermoelectric materials which constitute a thermoelectric conversion element. Provided are thermoelectric materials, a thermoelectric conversion element using the same, and a thermoelectric module using the thermoelectric materials and thermoelectric conversion element, the thermoelectric materials being characterized in that: a primary phase is an MgAgAs crystal phase; internal defects of the plurality of thermoelectric materials constituting a single thermoelectric conversion element have an area ratio of 10% or less with respect to the total area of defective portions in a scanned surface on which an ultrasonic defect detection is performed in the thickness direction of the thermoelectric material; and the thermoelectric material comprises a sintered body which has no defect with a length of 800 μm or more on any vertex of cubic chips of the thermoelectric material.
(FR) Les matériaux thermoélectriques selon un mode de réalisation de la présente invention sont une pluralité de matériaux thermoélectriques de type p et de type n qui constituent un élément de conversion thermoélectrique. L'invention concerne des matériaux thermoélectriques, un élément de conversion thermoélectrique utilisant ceux-ci, et un module thermoélectrique utilisant les matériaux thermoélectriques et l'élément de conversion thermoélectrique, les matériaux thermoélectriques étant caractérisés en ce que : une phase primaire est une phase cristalline MgAgAs; les défauts internes de la pluralité de matériaux thermoélectriques constituant un élément de conversion thermoélectrique unique ont un rapport de surface de 10 % ou moins par rapport à la surface totale de portions défectueuses dans une surface balayée sur laquelle une détection de défaut ultrasonique est effectuée dans la direction de l'épaisseur du matériau thermoélectrique; et le matériau thermoélectrique comprend un corps fritté qui n'a pas de défaut d'une longueur de 800 µm ou plus sur n'importe quel sommet des puces cubiques du matériau thermoélectrique.
(JA) 本発明の実施形態に係る熱電材料は、熱電変換素子を構成する複数のp型およびn型熱電材料であり、MgAgAs型結晶相を主相とし、1つの前記熱電変換素子を構成する複数の前記熱電材料の内部の欠陥が、熱電材料の厚さ方向に超音波探傷を行なった走査面内の欠陥部の合計の面積率で10%以下であり、かつ、前記熱電材料の立方体チップのいずれの頂点にも800μm以上の長さの欠陥がない焼結体からなることを特徴とする熱電材料、その製造方法、これらを使用した熱電変換素子、およびこれらを使用した熱電変換モジュールを提供する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)