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Title: NbFeSb based half-heusler thermoelectric materials and methods of fabrication and use

Abstract

A thermoelectric half-Heusler material comprising niobium (Nb), iron (Fe) and antimony (Sb) wherein the material comprises grains having a mean grain size less than one micron. A method of making a nanocomposite half-Heusler thermoelectric material includes melting constituent elements of the thermoelectric material to form an alloy of the thermoelectric material, comminuting (e.g., ball milling) the alloy of the thermoelectric material into nanometer scale mean size particles, and consolidating the nanometer size particles to form the half-Heusler thermoelectric material comprising at least niobium (Nb), iron (Fe) and antimony (Sb) and having grains with a mean grain size less than one micron.

Inventors:
; ; ; ; ; ; ;
Issue Date:
Research Org.:
Univ. of Houston, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531351
Patent Number(s):
10008653
Application Number:
14/667,056
Assignee:
University of Houston (Houston, TX); U.S. Department of Energy (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
DOE Contract Number:  
EE0004840
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015-03-24
Country of Publication:
United States
Language:
English

Citation Formats

Joshi, Giri, Yang, Jian, Engber, Michael, Pantha, Tej, Cleary, Martin, Ren, Zhifeng, He, Ran, and Kozinsky, Boris. NbFeSb based half-heusler thermoelectric materials and methods of fabrication and use. United States: N. p., 2018. Web.
Joshi, Giri, Yang, Jian, Engber, Michael, Pantha, Tej, Cleary, Martin, Ren, Zhifeng, He, Ran, & Kozinsky, Boris. NbFeSb based half-heusler thermoelectric materials and methods of fabrication and use. United States.
Joshi, Giri, Yang, Jian, Engber, Michael, Pantha, Tej, Cleary, Martin, Ren, Zhifeng, He, Ran, and Kozinsky, Boris. Tue . "NbFeSb based half-heusler thermoelectric materials and methods of fabrication and use". United States. https://www.osti.gov/servlets/purl/1531351.
@article{osti_1531351,
title = {NbFeSb based half-heusler thermoelectric materials and methods of fabrication and use},
author = {Joshi, Giri and Yang, Jian and Engber, Michael and Pantha, Tej and Cleary, Martin and Ren, Zhifeng and He, Ran and Kozinsky, Boris},
abstractNote = {A thermoelectric half-Heusler material comprising niobium (Nb), iron (Fe) and antimony (Sb) wherein the material comprises grains having a mean grain size less than one micron. A method of making a nanocomposite half-Heusler thermoelectric material includes melting constituent elements of the thermoelectric material to form an alloy of the thermoelectric material, comminuting (e.g., ball milling) the alloy of the thermoelectric material into nanometer scale mean size particles, and consolidating the nanometer size particles to form the half-Heusler thermoelectric material comprising at least niobium (Nb), iron (Fe) and antimony (Sb) and having grains with a mean grain size less than one micron.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {6}
}

Works referenced in this record:

Reduced Grain Size and Improved Thermoelectric Properties of Melt Spun (Hf,Zr)NiSn Half-Heusler Alloys
journal, December 2009