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@article{1545036,
author = {Zelenka, František and Brož, Pavel and Vřešťál, Jan and Buršík, Jiří and Rogl, Gerda and Grytsiv, Andríy and Rogl, Peter Franz},
article_location = {Cambridge},
article_number = {37},
doi = {http://dx.doi.org/10.1039/c9ra04056k},
keywords = {thermoelectrics; skutterudites; stability; phase analysis; mass spectrometry},
language = {eng},
issn = {2046-2069},
journal = {RSC Advances},
title = {Study of thermal stability of p-type skutterudites DD0.7Fe3CoSb12 by Knudsen effusion mass spectrometry},
url = {https://doi.org/10.1039/c9ra04056k},
volume = {9},
year = {2019}
}
TY - JOUR
ID - 1545036
AU - Zelenka, František - Brož, Pavel - Vřešťál, Jan - Buršík, Jiří - Rogl, Gerda - Grytsiv, Andríy - Rogl, Peter Franz
PY - 2019
TI - Study of thermal stability of p-type skutterudites DD0.7Fe3CoSb12 by Knudsen effusion mass spectrometry
JF - RSC Advances
VL - 9
IS - 37
SP - 21451-21459
EP - 21451-21459
PB - Royal Society of Chemistry
SN - 20462069
KW - thermoelectrics
KW - skutterudites
KW - stability
KW - phase analysis
KW - mass spectrometry
UR - https://doi.org/10.1039/c9ra04056k
L2 - https://doi.org/10.1039/c9ra04056k
N2 - The temperature and phase stability of p-type skutterudites, DD0.7Fe3CoSb12, manufactured via various preparation techniques, all exhibiting a high ZT-level, have been studied by means of thermal analysis and Knudsen effusion mass spectrometry. The results from phase transformation measurements and characteristics of evaporation of antimony, as the volatile element, supported by microstructure observations and by diffusion profiles are summarized and discussed in view of a full understanding of the degradation processes and knowledge on long term operation stability of the bulk and nano-structured thermoelectrics studied. It was found out that the antimony evaporation is a complex diffusion kinetic process resulting in a stable Sb level dependent on the preparation route. The studied p-type skutterudites, DD0.7Fe3CoSb12, have proven their long term stability in thermoelectric devices at maximum operation temperature of 600°C. Complementary data on structural, physical and mechanical properties of the materials are presented as well.
ER -
ZELENKA, František, Pavel BROŽ, Jan VŘEŠŤÁL, Jiří BURŠÍK, Gerda ROGL, Andríy GRYTSIV a Peter Franz ROGL. Study of thermal stability of p-type skutterudites DD0.7Fe3CoSb12 by Knudsen effusion mass spectrometry. \textit{RSC Advances}. Cambridge: Royal Society of Chemistry, 2019, roč.~9, č.~37, s.~21451-21459. ISSN~2046-2069. Dostupné z: https://dx.doi.org/10.1039/c9ra04056k.
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