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Multicomponent Entropy-Stabilized Zirconates with Comprehensive Properties for Advanced Thermal Barrier Coating

28 Pages Posted: 18 Sep 2019 First Look: Accepted

See all articles by Ke Ren

Ke Ren

Beijing Institute of Technology - Institute of Advanced Structure Technology; Northwestern Polytechnical University, China - Science and Technology on Thermostructural Composite Materials Laboratory

Qiankun Wang

Beijing Institute of Technology - Institute of Advanced Structure Technology; Northwestern Polytechnical University, China - Science and Technology on Thermostructural Composite Materials Laboratory

Gang Shao

Zhengzhou University - Henan Province Industrial Technology Research Institute of Resources and Materials

Xiaofeng Zhao

Shanghai Jiao Tong University (SJTU) - Shanghai Key Laboratory of Advanced High-Temperature Materials and Precision Forming

Yiguang Wang

Beijing Institute of Technology - Institute of Advanced Structure Technology

Abstract

Thermal barrier coating materials, commonly ceramics, are deposited on superalloy surfaces to improve their service temperature. However, the intrinsic brittleness and low thermal expansion coefficient of ceramic materials pose a great challenge to developing new materials to replace yttria-stabilized zirconia. Herein, entropy engineering is employed to fabricate multicomponent rare earth zirconates with a large thermal expansion coefficient, excellent mechanical properties and ultralow thermal conductivity, without sacrificing other properties. This work provides a new insight into developing novel ceramics with a combination of mechanical and thermophysical properties, which would be significant in material development for thermal barrier coatings, thermoelectric fields, etc.

Keywords: Thermal barrier coatings, Entropy-stabilized ceramics, Rare earth zirconates, Thermophysical properties

Suggested Citation

Ren, Ke and Wang, Qiankun and Shao, Gang and Zhao, Xiaofeng and Wang, Yiguang, Multicomponent Entropy-Stabilized Zirconates with Comprehensive Properties for Advanced Thermal Barrier Coating. Available at SSRN: https://ssrn.com/abstract=3454924

Ke Ren

Beijing Institute of Technology - Institute of Advanced Structure Technology

China

Northwestern Polytechnical University, China - Science and Technology on Thermostructural Composite Materials Laboratory

China

Qiankun Wang

Beijing Institute of Technology - Institute of Advanced Structure Technology

China

Northwestern Polytechnical University, China - Science and Technology on Thermostructural Composite Materials Laboratory

China

Gang Shao

Zhengzhou University - Henan Province Industrial Technology Research Institute of Resources and Materials

China

Xiaofeng Zhao

Shanghai Jiao Tong University (SJTU) - Shanghai Key Laboratory of Advanced High-Temperature Materials and Precision Forming

China

Yiguang Wang (Contact Author)

Beijing Institute of Technology - Institute of Advanced Structure Technology ( email )

China

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