skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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

Patent ·
OSTI ID:1531351
; ; ; ; ; ; ;

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.

Research Organization:
Univ. of Houston, TX (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0004840
Assignee:
University of Houston (Houston, TX); U.S. Department of Energy (Washington, DC)
Patent Number(s):
10,008,653
Application Number:
14/667,056
OSTI ID:
1531351
Resource Relation:
Patent File Date: 2015-03-24
Country of Publication:
United States
Language:
English

References (7)

Effect of Hf Concentration on Thermoelectric Properties of Nanostructured N-Type Half-Heusler Materials Hf x Zr 1-x NiSn 0.99 Sb 0.01 journal May 2013
Half-Heusler Alloys with Enhanced Figure of Merit and Methods of Making patent-application December 2012
Reduced Grain Size and Improved Thermoelectric Properties of Melt Spun (Hf,Zr)NiSn Half-Heusler Alloys journal December 2009
Enhancement of thermoelectric figure-of-merit at low temperatures by titanium substitution for hafnium in n-type half-Heuslers Hf0.75−xTixZr0.25NiSn0.99Sb0.01 journal January 2013
Thermoelectric Conversion Module and Heat Exchanger, Thermoelectric Temperature Control Device and Thermoelectric Generator Employing the Same patent-application August 2010
Heat Exchanger for Thermoelectric Generators patent-application February 2013
Composite Material of Complex Alloy and Generation Method Thereof, Thermoelectric Device and Thermoelectric Module patent-application July 2010

Similar Records

Related Subjects