Co-Sb based thermoelectric material and a method of producing th

Details Co-Sb based thermoelectric material and a method of producing th Co-Sb based thermoelectric material and a method of producing th

1998-04-23

1999-07-27

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75246, 419 35, 136201, 136240, C22C 1900

Patent

active

059293519

ABSTRACT:
The present invention relates to a thermoelectric material containing CoSb.sub.3 compound for converting heat to electricity, and provides a p-type thermoelectric material of CoSb.sub.3 having a high power factor by achieving high Seebeck coefficient consistently with high electric conductivity in a material of CoSb.sub.3 system without causing increase in heat conductivity. By sintering Co.sub.0.07 Pt.sub.0.03 Sb.sub.3 alloy powder using the spark plasma sintering technique, the material is densified, while growth of grains is restricted, so that a higher electric conductivity is achieved with a heat conductivity maintained in a low level, and the figure of merit as a heat-transfer material is improved. Also, by providing such heat insulating layer as an oxide intermediately in a grain boundary of a compound of CoSb.sub.3 in a sintered body, the heat conductivity is reduced. Further, the Seebeck coefficient is increased by adding a rare earth metal to the thermoelectric material of CoSb.sub.3, and allowing it to be precipitated in grain boundaries of the sintered body.

REFERENCES:
patent: 5610366 (1997-03-01), Fleurial et al.

Affiliated with

Also associated with

Rating

Co-Sb based thermoelectric material and a method of producing th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Co-Sb based thermoelectric material and a method of producing th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Co-Sb based thermoelectric material and a method of producing th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-880732