A promising material for thermal barrier coating

Pyrochlore-related compound Sm2FeTaO7

Journal Article (2018)
Author(s)

Jun Yang (Nanjing Engineering University, Tsinghua University)

Yi Han (Tsinghua University)

Muhammad Shahid (Tsinghua University)

Wei Pan (Tsinghua University)

Meng Zhao (TU Delft - (OLD) MSE-1)

Wangjie Wu (Nanjing Engineering University)

Chunlei Wan (Tsinghua University)

Research Group
(OLD) MSE-1
DOI related publication
https://doi.org/10.1016/j.scriptamat.2018.02.005 Final published version
More Info
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Publication Year
2018
Language
English
Research Group
(OLD) MSE-1
Journal title
Scripta Materialia
Volume number
149
Pages (from-to)
49-52
Downloads counter
238

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.