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@article{1817013,
author = {Zelenka, František and Brož, Pavel and Vřešťál, Jan and Buršík, Jiří and Zemanová, Adéla and Rogl, Gerda and Rogl, Peter},
article_location = {Oxford},
article_number = {September},
doi = {http://dx.doi.org/10.1016/j.calphad.2021.102292},
keywords = {Thermoelectric materials; Half-Heusler alloys; Differential thermal analysis; Knudsen effusion method; Analytical scanning electron microscopy},
language = {eng},
issn = {0364-5916},
journal = {Calphad},
title = {Study of thermal stability of half-Heusler alloys TiFe1.33Sb and TixNb1-xFeSb (x = 0, 0.15) by differential thermal analysis and Knudsen effusion method},
url = {https://www.sciencedirect.com/science/article/pii/S0364591621000432#!},
volume = {74},
year = {2021}
}
TY - JOUR
ID - 1817013
AU - Zelenka, František - Brož, Pavel - Vřešťál, Jan - Buršík, Jiří - Zemanová, Adéla - Rogl, Gerda - Rogl, Peter
PY - 2021
TI - Study of thermal stability of half-Heusler alloys TiFe1.33Sb and TixNb1-xFeSb (x = 0, 0.15) by differential thermal analysis and Knudsen effusion method
JF - Calphad
VL - 74
IS - September
SP - "102292"
EP - "102292"
PB - Pergamon-Elsevier Science Ltd
SN - 03645916
KW - Thermoelectric materials
KW - Half-Heusler alloys
KW - Differential thermal analysis
KW - Knudsen effusion method
KW - Analytical scanning electron microscopy
UR - https://www.sciencedirect.com/science/article/pii/S0364591621000432#!
N2 - Half-Heusler alloys, a non-centrosymmetric structure variant of the Heusler type, create a category of advanced thermoelectric materials. The thermal and phase stability of half-Heusler alloys TiFe1.33Sb and TixNb1-xFeSb (x = 0, 0.15), prepared by various techniques (hot pressing, ball milling or high-energy ball milling and hot pressing, as well as in one case with additional annealing), have been studied by means of differential thermal analysis and the Knudsen effusion method. The results from the measurement of phase transformations and evaporation of antimony, as the volatile element, supported by microstructure measurements and by diffusion profiles are presented and discussed in view of the long-term operation stability of the thermoelectric materials investigated. The alloys TiFe1.33Sb and TixNb1-xFeSb have all evidenced only a slight evaporation of antimony and have proven their long-term stability at temperatures well above the operation temperature of ~873 K.
ER -
ZELENKA, František, Pavel BROŽ, Jan VŘEŠŤÁL, Jiří BURŠÍK, Adéla ZEMANOVÁ, Gerda ROGL a Peter ROGL. Study of thermal stability of half-Heusler alloys TiFe1.33Sb and TixNb1-xFeSb (x = 0, 0.15) by differential thermal analysis and Knudsen effusion method. \textit{Calphad}. Oxford: Pergamon-Elsevier Science Ltd, 2021, roč.~74, September, s.~''102292'', 7 s. ISSN~0364-5916. Dostupné z: https://dx.doi.org/10.1016/j.calphad.2021.102292.
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