Title:
THERMOELECTRIC MATERIAL AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3319338
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a thermoelectric material which has a high performance index of 4.0×10-3 (1/K) or more and its manufacture.
SOLUTION: Thermoelectric material is of P-type containing at least one element selected from a group of elements composed of Bi and Sb and at least one element selected from a group of elements composed of Te and Se. In this case, the average diameter of the crystal grain is limited to 50μm or less and oxygen content, 1500wt.ppm or less. A thin film is manufactured from the material containing, at least one element selected from a group of elements composed of Bi and Sb and at least one element selected from a group of elements composed of Te and Se, by liquid quenching, the thin film is powdered, and the powder is reduced by hydrogen gas to be solidified under the condition that the crystal grain does not roughen, and the thermoelectric material is manufactured.
Inventors:
Yuma Horio
Hiroyuki Yamashita
Toshiharu Hoshi
Hiroyuki Yamashita
Toshiharu Hoshi
Application Number:
JP14694497A
Publication Date:
August 26, 2002
Filing Date:
June 04, 1997
Export Citation:
Assignee:
Yamaha Corporation
International Classes:
C22C1/04; C22C12/00; H01L35/16; H01L35/34; (IPC1-7): H01L35/16; C22C1/04; C22C12/00; H01L35/34
Domestic Patent References:
| JP1279724A | ||||
| JP341780A | ||||
| JP6477184A |
Attorney, Agent or Firm:
Masanori Fujimaki