Thermal conductivity reduction in fullerene-enriched p-type bismuth telluride composites

被引：20

作者：

Gothard, N. ^{[1
,2
]}

Spowart, J. E. ^{[2
]}

Tritt, T. M. ^{[1
]}

机构：

[1] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA

[2] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2010年 / 207卷 / 01期

关键词：

THERMOELECTRIC-MATERIALS; FIGURE; SCATTERING; APPARATUS;

D O I：

10.1002/pssa.200925145

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a systematic study of the effects of fullerene nanoinclusions upon a p-type bismuthy-antimony-telluride matrix where the ultimate goal is maximizing the figure of merit by reducing the thermal conductivity (TC) Nanocomposites consisting of a bismuth-telluride matrix with fullerene inclusions have been prepared both by mechanical mixing and ball milling, with the final consolidation in each case achieved by uniaxial hot pressing. A series of samples was produced with fullerene concentrations ranging from fractional levels to several molar percent, and the effects of the fullerence additions upon the resulting. microstructure have been considered. Thermal and electrical, transport properties have been measured from 10 to 300 K, and the data are discussed in light of the underlying physical mechanisms.

引用

页码：157 / 162

页数：6

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