Half-heusler alloys with enhanced figure of merit and methods of making

Ren, Zhifeng; Yan, Xiao; Joshi, Giri; Chen, Shuo; Chen, Gang; Poudel, Bed; Caylor, James Christopher

Half-heusler alloys with enhanced figure of merit and methods of making

Patent · 02 June 2015

OSTI ID:1183343

Ren, Zhifeng; Yan, Xiao; Joshi, Giri; Chen, Shuo; Chen, Gang; Poudel, Bed; Caylor, James Christopher

Thermoelectric materials and methods of making thermoelectric materials having a nanometer mean grain size less than 1 micron. The method includes combining and arc melting constituent elements of the thermoelectric material to form a liquid alloy of the thermoelectric material and casting the liquid alloy of the thermoelectric material to form a solid casting of the thermoelectric material. The method also includes ball milling the solid casting of the thermoelectric material into nanometer mean size particles and sintering the nanometer size particles to form the thermoelectric material having nanometer scale mean grain size.

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Research Organization:: GMZ Energy, Inc., Waltham, MA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG02-00ER45805

Assignee:: GMZ Energy, Inc. (Waltham, MA)

Patent Number(s):: 9,048,004

Application Number:: 13/719,966

OSTI ID:: 1183343

Country of Publication:: United States

Language:: English

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