Synthesis and thermoelectric properties of the new skutterudites YbxFe2Ni2Sb12 (0 ≤ x ≤ 0.4)

Andreas Kaltzoglou, Paz Vaqueiro, Anthony Vivian Powell

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The family of materials YbxFe2Ni2Sb12 (0 = x = 0.4) has been prepared by solid-state synthesis from the pure elements and characterized by powder X-ray diffraction. These materials crystallize in the skutterudite structure, with the framework voids partially filled with Yb atoms. Electrical resistivity, Seebeck coefficient and thermal conductivity measurements have been performed on hot-pressed samples, and indicate that the thermoelectric performance is significantly improved by increasing the Yb content. The decomposition of the compounds under oxidizing atmosphere at elevated temperatures has also been studied by thermogravimetric analysis. The physical properties and thermal stability of the new compounds are further discussed in comparison with those of the reported isostructural and isoelectronic YbxCo4Sb12 (0 = x = 0.19).
Original languageEnglish
Title of host publication9th European Conference on Thermoelectrics
Subtitle of host publicationB. Thermoelectric Materials
EditorsK M Paraskevopoulos, E Hatzikraniotis
Number of pages4
Publication statusPublished - 2012
Event9th European Conference on Thermoelectrics - Thessaloniki, Greece
Duration: 28 Sept 201130 Sept 2011

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference9th European Conference on Thermoelectrics
Abbreviated titleECT2011


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