Presentation Details
Atmospheric plasma sprayed gadolinia-doped ceria electrolyte coatings
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Abstract
Atmospheric plasma spraying (APS) was applied to deposit Gd0.2Ce0.8O1.9 (20GDC) coatings by using different H2 flow rates (3-12 l/min), which aimed to explore the effect of H2 flow rates on the powder melting and coating characteristics. The results showed that with increasing H2 flow rates, the deposition state of 20GDC powder was changed from solid-liquid co-deposition to liquid deposition. Using a 6 l/min H2 flow rate could obtain the best coating with a moderate melting degree, proper impact velocity, and cooling speed. Therefore, the as-sprayed coating possessed the lowest porosity of 7.1%, the highest electrical conductivity (29.3 mS/cm at 750℃), and the best output performance of NiO+GDC/GDC/Silver cell (196 mW/cm2 at 700℃).
Keywords
gadolinia-doped ceria coating; atmospheric plasma spray; microstructure; electrical property
Speaker
ChenSONG
The Key Lab of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Acadamy of Sciences, Guangzhou 510651, China. TaikaiLIU
The Key Lab of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Acadamy of Sciences, Guangzhou 510651, China. ZiqianDENG
The Key Lab of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Acadamy of Sciences, Guangzhou 510651, China. YapengZHANG
The Key Lab of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Acadamy of Sciences, Guangzhou 510651, China. 刘敏
The Key Lab of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Acadamy of Sciences, Guangzhou 510651, China. 克崧周
The Key Lab of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Acadamy of Sciences, Guangzhou 510651, China.Submission Author
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Important Date
-
Conference Date
Nov 13
2020
toNov 16
2020
-
Oct 31 2020
Early Bird Registration
-
Nov 05 2020
Draft paper submission deadline
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Nov 16 2020
Registration deadline
Sponsored By
中国机械工程学会表面工程分会
Organized By
广东省新材料研究所
北京大学深圳研究生院
现代材料表面工程技术国家工程实验室
北京大学深圳研究生院
现代材料表面工程技术国家工程实验室
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