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@proceedings{1198199, author = {Brož, Pavel and Zelenka, František and Vřešťál, Jan and Buršík, Jiří and Zeiringer, Isolde and Falmbigl, Matthias and Rogl, Gerda and Rogl, Peter Franz}, booktitle = {TOFA 2014}, keywords = {thermoelectrics; thermal analysis; Knudsen effusion mass spectrometry}, language = {eng}, title = {Combination of thermal analysis and Knudsen effusion mass spectrometry for investigation of thermal stability of thermoelectric materials}, url = {http://tofa2014.ipm.cz/}, year = {2014} }
TY - CONF ID - 1198199 AU - Brož, Pavel - Zelenka, František - Vřešťál, Jan - Buršík, Jiří - Zeiringer, Isolde - Falmbigl, Matthias - Rogl, Gerda - Rogl, Peter Franz PY - 2014 TI - Combination of thermal analysis and Knudsen effusion mass spectrometry for investigation of thermal stability of thermoelectric materials KW - thermoelectrics KW - thermal analysis KW - Knudsen effusion mass spectrometry UR - http://tofa2014.ipm.cz/ N2 - Study in the field of thermoelectric materials is of great importance because these materials are able to directly convert thermal energy into electrical energy (Seebeck effect, 1821; thermoelectric generator) and reversibly electrical energy into thermal energy (Peltier effect, 1835; thermoelectric heat pump or Peltier cooling). The research is currently oriented on non-toxic materials with high ZT-levels which can be reached e.g. by nano-structuring. Improvement of thermoelectric materials and production processes concern their thermoelectric properties, their thermodynamic and phase equilibria and also their long term thermal stability, which strongly depends on the content of volatile constituents as the current progressive materials contain elements like Cd, Zn, Sb, Sr etc. Combination of 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 has been used as a powerful tool for investigation of the temperature and phase stability of selected thermoelectric materials with high ZT-levels. The results supported by microstructure observations and measurements of diffusion profiles are reported. ER -
BROŽ, Pavel, František ZELENKA, Jan VŘEŠŤÁL, Jiří BURŠÍK, Isolde ZEIRINGER, Matthias FALMBIGL, Gerda ROGL and Peter Franz ROGL. Combination of thermal analysis and Knudsen effusion mass spectrometry for investigation of thermal stability of thermoelectric materials. In \textit{TOFA 2014}. 2014.
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