Preparation, Characterization, and Thermophysical Properties of (La 0.95 Sr 0.05 ) 2 Ce 2 O 6.95 Ceramic for Thermal Barrier Coatings
Source abstract
Abstract
The La 2 Ce 2 O 7 powder doped with Sr was synthesized by sol‐gel method in this study and its dense bulk samples were also prepared by pressureless‐sintered at 1600°C for 10 h. Its phase composition, microstructure, and thermophysical property were investigated. Results reveal that pure (La 0.95 Sr 0.05 ) 2 Ce 2 O 6.95 with single fluorite structure was successfully synthesized. Microstructure of bulk sample is dense. Its thermal expansion coefficient is higher than that of Y 2 O 3 ‐stabilized ZrO 2 ( YSZ ) and its thermal conductivity is lower than that of YSZ . These results show that (La 0.95 Sr 0.05 ) 2 Ce 2 O 6.95 ceramic can be explored as the candidate material for thermal barrier coatings.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · Nuclear Materials and Properties · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mechanical Engineering Henan Institute of Engineering Zhengzhou 450007 People's Republic of China
Kunming University of Science and Technology College of City Kunming 650500 People's Republic of China
Department of Construction Engineering Henan Institute of Engineering Zhengzhou 450007 People's Republic of China
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