Ag-Pb-Sb-Te thermoelectric materials and preparation process thereof
Title：
Ag-Pb-Sb-Te thermoelectric materials and preparation process thereof
Application Number：
 200510114218
Application Date：
 2005/10/21
Announcement Date：
 2006/04/05
Pub. Date：
Publication Number：
 1755961
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H01L 35/16, H01L 35/34
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Li Jingfeng, Wang Heng, Kida Takushi
Key Words：
 Ag-Pb-Sb-Te, thermoelectric materials, preparation process
Abstract：
 The invention discloses new energy resource material and its preparing technique, relating to a Ag-Pb-Sb-Te thermoelectric material of thermoelectric semi-conductor compound with high thermoelectric effect and the relative preparing method. The invention utilizes the mechanical alloying (MA) combined with discharge plasma sinter (SPS) to prepare the PbTe high-performance thermoelectric material, which can be displayed as Ag1-XPb18+YSbTe20, wherein, the x is the amount of deviated Ag amount and y is amount that the raw material powder over the measurement rate of Pb. Compared to traditional powder metallurgy technology, the inventive MA+SPS process has the advantages of short process, high efficiency, lower energy consumption, and application to the industrial mass production and the attained thermoelectric material has better thermoelectric performance while the non-dimensional merit ZT of thermoelectric material of Ag1-XPb18+YSbTe20 prepared by MA and SPS can reach 1.37 in the temperature of 450 Deg. C.
Claim：
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PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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