A promising material for thermal barrier coating: Pyrochlore-related compound Sm2FeTaO7

Jun Yang, Yi Han, Muhammad Shahid, Wei Pan, Meng Zhao, Wangjie Wu, Chunlei Wan

Research output: Contribution to journalArticleScientificpeer-review

26 Citations (Scopus)

Abstract

Pyrochlore-related compound Sm2FeTaO7 was synthesized and investigated. It is shown that the thermal conductivity values are approximately half of the Yttria-Stabilized Zirconia (YSZ) over the temperature range of 25–1000 °C. Especially, thermal conductivity at high temperature is close to that of minimum thermal conductivity, as predicted by theoretical investigation, signifying better heat insulation capabilities. Considering lower Young modulus, improved fracture toughness, and better high-temperature phase stability, Sm2FeTaO7 compound can be a promising material for thermal insulating applications, such as thermal barrier coatings.

Original languageEnglish
Pages (from-to)49-52
JournalScripta Materialia
Volume149
DOIs
Publication statusPublished - 2018

Keywords

  • Mechanical properties
  • SmFeTaO
  • Thermal barrier coating
  • Thermal conductivity

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