Study of thermal stability of CoSb3 skutterudite by Knudsen effusion mass spectrometry

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Authors

BROŽ Pavel ZELENKA František KOHOUTEK Zdeněk VŘEŠŤÁL Jan VYKOUKAL Vít BURŠÍK Jiří ZEMANOVÁ Adéla ROGL Gerda ROGL Peter Franz

Year of publication 2019
Type Article in Periodical
Magazine / Source CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
MU Faculty or unit

Faculty of Science

Citation
Web CoSb3 skutterudite
Doi http://dx.doi.org/10.1016/j.calphad.2019.01.012
Keywords thermoelectrics; Co-Sb system; stability; phase analysis; mass spectrometry
Attached files
Description The thermal and phase stability of primary CoSb3 skutterudite prepared by ball milling and hot pressing was investigated using thermal analysis and Knudsen effusion mass spectrometry performed on a Netzsch STA 409 CD/3/403/5/G apparatus, a specially-adapted type of the commercial STA 409 CD - QMS 403/5 Skimmer Coupling Instrument. Results, including data on phase transformations and those from vapour pressure measurements of antimony, supported by measurements of diffusion profiles and microstructure observations are summarized and used for evaluation of the long term thermal stability of the material.
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