DOI: 10.1063/1.3296186. Double-filled skutterudites of the type YbxCayCo4Sb12: Synthesis and properties

Double-filled skutterudites of the type YbxCayCo4Sb12: Synthesis and properties

10.1063/1.3296186

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

Filled skutterudites based on CoSb3 exhibit high ZT values due to the inclusion of filler atoms into voids that comprise the crystal structure of CoSb3. These atoms act as electron-donating species that dope the parent material, thereby decreasing the electrical resistivity. Additionally, the loosely bound nature of the filler species acts to scatter heat carrying phonons, which reduce the thermal conductivity. Recently it has been reported that filler atoms from different chemical groups could be cofilled into CoSb3, which further reduces the thermal conductivity, likely by scattering a wider spectrum of phonons. Presented here is the synthesis and transport property evaluation of a series of double-filled skutterudites of the type YbxCayCo4Sb12. Good power factors, S2/ρ comparable to Yb-filled skutterudites are obtained for samples with a high Yb to Ca filling ratio. Filling with Ca and Yb did not yield a significant reduction in the thermal conductivity and as a result the ZT values are not improved as compared to Yb-only filled skutterudites although they are much improved as compared to Ca-only filled.

Bibliography

Salvador, J. R., Yang, J., Wang, H., & Shi, X. (2010). Double-filled skutterudites of the type YbxCayCo4Sb12: Synthesis and properties. Journal of Applied Physics, 107(4).

Authors 4

J. R. Salvador (first)
J. Yang (additional)
H. Wang (additional)
X. Shi (additional)

References 42 Referenced 60

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Dates

Type	When
Created	15 years, 5 months ago (Feb. 23, 2010, 10:43 a.m.)
Deposited	2 years ago (July 30, 2023, 9:14 p.m.)
Indexed	3 weeks, 2 days ago (July 30, 2025, 6:54 a.m.)
Issued	15 years, 6 months ago (Feb. 15, 2010)
Published	15 years, 6 months ago (Feb. 15, 2010)
Published Online	15 years, 6 months ago (Feb. 22, 2010)
Published Print	15 years, 6 months ago (Feb. 15, 2010)

Funders 0

None

BibTeX

@article{Salvador_2010, title={Double-filled skutterudites of the type YbxCayCo4Sb12: Synthesis and properties}, volume={107}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.3296186}, DOI={10.1063/1.3296186}, number={4}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Salvador, J. R. and Yang, J. and Wang, H. and Shi, X.}, year={2010}, month=feb }

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