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Thermal conductivity of CoSb 3 nano‐composites grown via a novel solvothermal nano‐plating technique
Author(s) -
Ji X.,
He J.,
Alboni P.,
Su Z.,
Gothard N.,
Zhang B.,
Tritt Terry M.,
Kolis J. W.
Publication year - 2007
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.200701126
Subject(s) - skutterudite , nano , materials science , thermal conductivity , composite material , plating (geology) , composite number , nanoparticle , homogeneous , nanotechnology , thermoelectric materials , geophysics , geology , physics , thermodynamics
We have utilized a solvothermal nano‐plating technique to grow nano‐structured CoSb 3 directly onto the surface of micron‐sized CoSb 3 particles that were subsequently hot pressed and densified into a homogeneous skutterudite nano‐composite. We herein present results for three samples: a bulk sample to serve as a reference, and two samples with solvothermally grown nano‐structures of 5 wt% and 20 wt%, respectively. All three samples used the same bulk starting materials. The thermal conductivity was measured via two independent techniques (steady state and laser flash) and both show a systematic reduction in the thermal conductivity with an increasing amount of nano‐structures. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)