Thermal and phase stability of skutterudite master alloys for thermoelectric materials
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00101662" target="_blank" >RIV/00216224:14310/18:00101662 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Thermal and phase stability of skutterudite master alloys for thermoelectric materials
Original language description
Skutterudites, especially those based on cobalt and antimony, represent a promising class of materials for thermoelectric applications. The search for suitable doped analogues and advanced preparation techniques is only one part on the route to development of high efficient thermoelectrics, i.e. materials with high ZT- factor and hence with more efficient conversion of the waste heat to electricity [1]. The other part includes the study of the thermal and phase stability as these materials contain volatile elements (Sb, Sr, Yb, etc.), which can evaporate at operation conditions leading to structure changes, damaging the thermoelectric properties. To gain basic information for the study of doped multicomponent skutterudites, the thermal and phase stability of skutterudite CoSb3 master alloys were investigated using thermal analysis and Knudsen effusion mass spectrometry. Results, including data on phase transformations and those from vapour pressure measurements of antimony, supported by powder X-ray diffraction, measurement of diffusion profiles and microstructure observations are summarized and used for evaluation of the long term thermal stability of the materials.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů