Barium zinc antimony based p type thermoelectric material and method for making same

A thermoelectric material, antimony-based technology, applied in the direction of thermoelectric device junction lead-out materials, etc., can solve problems such as low thermal conductivity
CN101118946AInactive Publication Date: 2008-02-06SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Publication Date
2008-02-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a barium stibium and zinc based p type thermoelectric material and the preparing method and belongs to the thermoelectric conversion material domain. The chemical general expression of the present invention is Bal-uRuZn2-vTvSb2-zSz, wherein the R element is Ca, Sr, Yb or Eu and X is the R with impurity with an arrange X which is no less than zero and no more than zero point two; the T element is Cu or Ag and y is T with impurity with an arrange y which is no less than zero and no more than zero point two; S is element Ge or Sn and z is S with impurity with an arrange z which is no less than zero and no more than zero point two. The present invention is compounded under the vacuum or inertia gas and the present invention adopts the quick plasma sinter(SPS) or the method of heat pressure sinter porcelain sample. The ZT value of barium stibium and zinc can reach zero point thirty eight and will be enhanced after adding impurity; and the present invention can be applicable to the thermoelectricity conversion generating or the refrigeration.
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Description

technical field

[0001] The invention relates to a barium-zinc-antimony-based p-type thermoelectric material and a preparation method thereof, belonging to the field of thermoelectric conversion materials. Background technique

[0002] Thermoelectric conversion technology is a technology that uses the Seebeck effect and Peltier effect of semiconductor materials to directly convert heat and electricity, including thermoelectric power generation and thermoelectric refrigeration. [1-2] . The thermoelectric conversion system has the advantages of small size, high reliability, no pollution, no noise, wide applicable temperature range, etc. As a special power supply and high-precision temperature control device, it has been widely used in high-tech fields such as space technology, military equipment, and IT technology. application. The thermoelectric conversion efficiency of the system mainly depends on the performance of the thermoelectric material, that is, the dimensionless pe...

Claims

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