Thermal expansion and heat capacity of Sm2ScTaO7 – A promising material for thermal barrier coatings

Konstantin S. Gavrichev, Anna V. Shlyakhtina, Andrey V. Khoroshilov, Alexander V. Tyurin, Artem A. Ashmarin, Elena Yu Konysheva

Research output: Journal PublicationArticlepeer-review

6 Citations (Scopus)

Abstract

The experimental results presented for Sm2ScTaO7 pyrochlore in this study, temperature dependence of heat capacity and retaining the pyrochlore structure with the temperature variation, as well as the constant value of the thermal expansion coefficient in a wide temperature range, can be considered as evidences for the absence of a previously reported phase transition in the high-temperature region for this compound. This means that Sm2ScTaO7pyrochlore is no doubt a promising material for thermal barrier coatings.

Original languageEnglish
Pages (from-to)4415-4420
Number of pages6
JournalJournal of the American Ceramic Society
Volume102
Issue number8
DOIs
Publication statusPublished - Aug 2019

Keywords

  • 3+/5+ pyrochlores
  • X-ray methods
  • phase transition
  • thermal barrier coatings (TBC)
  • thermal expansion

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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