Thermo-electric material having mean crystal grain diameter nor greater than 50 microns and mean aspect ratio between 1 and 3 for large figure of merit and thermo-electric element using the same
US5883563A · kind A · utility
14Cited by
2References
10Claims
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Key dates
| Filing date | Apr 30, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Apr 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Thermo-electric material has a composition containing at least one first element selected from the group consisting of Bi and Sb and at least one second element selected from the group consisting of Te and Se, and the crystal grains of the thermo-electric material have a mean crystal grain diameter equal to or less than 50 microns and a mean aspect ratio between 1 and 3 so as to achieve a large figure of merit equal to or greater than 3.4.times.10.sup.-3 /.degree.K.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.