Thermal and phase stability of skutterudite master alloys for
thermoelectric materials

a 2018

Thermal and phase stability of skutterudite master alloys for thermoelectric materials

ZELENKA, František; Pavel BROŽ; Jan VŘEŠŤÁL; Vít VYKOUKAL; Jiří BURŠÍK et al.

Základní údaje

Originální název

Thermal and phase stability of skutterudite master alloys for thermoelectric materials

Název česky

Termická a fázová stabilita základních skuteruditových slitin pro termoelektrické materiály

Autoři

ZELENKA, František; Pavel BROŽ; Jan VŘEŠŤÁL; Vít VYKOUKAL; Jiří BURŠÍK; Gerda ROGL a Peter Franz ROGL

Vydání

Materials Science and Engineering Congress - MSE 2018, 2018

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10400 1.4 Chemical sciences

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Odkazy

conference website

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/18:00101662

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova česky

termoelektrické materiály; skuterudity; KEMS; TA; SEM

Klíčová slova anglicky

thermoelectric materials; skutterudites; KEMS; TA; SEM

Příznaky

Mezinárodní význam

Změněno: 5. 2. 2019 21:09, doc. RNDr. Pavel Brož, Ph.D.

Anotace

V originále

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.

Návaznosti

GA17-12844S, projekt VaV

Název: Tepelná a fázová stabilita pokročilých termoelektrických materiálů

Investor: Grantová agentura ČR, Tepelná a fázová stabilita pokročilých termoelektrických materiálů

LQ1601, projekt VaV

Název: CEITEC 2020 (Akronym: CEITEC2020)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020

Citovat

ZELENKA, František; Pavel BROŽ; Jan VŘEŠŤÁL; Vít VYKOUKAL; Jiří BURŠÍK; Gerda ROGL a Peter Franz ROGL. Thermal and phase stability of skutterudite master alloys for thermoelectric materials. In Materials Science and Engineering Congress - MSE 2018. 2018.

@proceedings{1491376,
   author = {Zelenka, František and Brož, Pavel and Vřešťál, Jan and Vykoukal, Vít and Buršík, Jiří and Rogl, Gerda and Rogl, Peter Franz},
   booktitle = {Materials Science and Engineering Congress - MSE 2018},
   keywords = {thermoelectric materials; skutterudites; KEMS; TA; SEM},
   language = {eng},
   title = {Thermal and phase stability of skutterudite master alloys for thermoelectric materials},
   url = {https://www.mse-congress.de/home/},
   year = {2018}
}

TY  - CONF
ID  - 1491376
AU  - Zelenka, František - Brož, Pavel - Vřešťál, Jan - Vykoukal, Vít - Buršík, Jiří - Rogl, Gerda - Rogl, Peter Franz
PY  - 2018
TI  - Thermal and phase stability of skutterudite master alloys for thermoelectric materials
KW  - thermoelectric materials
KW  - skutterudites
KW  - KEMS
KW  - TA
KW  - SEM
UR  - https://www.mse-congress.de/home/
N2  - 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.
ER  -

ZELENKA, František; Pavel BROŽ; Jan VŘEŠŤÁL; Vít VYKOUKAL; Jiří BURŠÍK; Gerda ROGL a Peter Franz ROGL. Thermal and phase stability of skutterudite master alloys for thermoelectric materials. In \textit{Materials Science and Engineering Congress - MSE 2018}. 2018.

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