Mesostructured thermoelectric Co1−yMySb3 (M = Ni, Pd) skutterudites
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- 作者：E. Allenoa ; eric.alleno@icmpe.cnrs.fr" class="auth_mail" title="E-mail the corresponding author ; E. Zehania ; M. Gaborita ; V. Orodniichukb ; B. Lenoirb ; M. Benyahiaa
- 关键词：Thermoelectricity ; Skutterudite ; Grain growth ; Thermal conductivity ; Electronic properties
- 刊名：Journal of Alloys and Compounds
- 出版年：2017
- 出版时间：25 January 2017
- 年：2017
- 卷：692
- 期：Complete
- 页码：676-686
- 全文大小：3320 K
文摘
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Meso-Co0.97Pd0.03Sb3 composites were synthesized with grain sizes 220 nm.
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Meso Co0.94Ni0.06Sb3 composites were synthesized with grain sizes 170 nm.
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The lattice thermal conductivity is reduced by nearly 50%.
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A value of 110 nm can be estimated for the phonon mean free path in both compounds.
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The figure of merit is improved by 12% (ZT = 0.7) in meso-Co0.94Ni0.06Sb3.