Paper Title:
Synthesis and Transport Properties of Polycrystalline Co-Filled Type-I Clathrate Compound (Sr,Ba)8Ga16Ge30
  Abstract

Ga-substituted Ge based type-I clathrates with the general formula A8X16Y30 display promising thermoelectric performance. Using high purity elemental Sr, Ba, Ga, and Ge as starting materials, polycrystalline co-filled type-I clathrate compound (Sr,Ba)8Ga16Ge30 were successfully achieved by combining melting and Spark Plasma Sinter (SPS) method. The temperature dependence of thermal conductivity, electronic conductivity and Seebeck coefficient were reported. The calculated ZTmax is 0.28 at 700K. Enhanced thermoelectric performance would be expected through adjusting Sr/Ba ratio and framework atoms.

  Info
Periodical
Materials Science Forum (Volumes 610-613)
Main Theme
Edited by
Zhongwei Gu, Yafang Han, Fusheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou
Pages
441-445
DOI
10.4028/www.scientific.net/MSF.610-613.441
Citation
L. Wang, D. G. Zhao, X. Y. Shi, W. Jiang, L. D. Chen, "Synthesis and Transport Properties of Polycrystalline Co-Filled Type-I Clathrate Compound (Sr,Ba)8Ga16Ge30", Materials Science Forum, Vols. 610-613, pp. 441-445, 2009
Online since
January 2009
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