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

*Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    35 Citations (Scopus)


    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
    Publication statusPublished - 2018


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


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