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Atmospheric plasma sprayed gadolinia-doped ceria electrolyte coatings
编号：21 访问权限：Public 更新：2020-10-22 10:39:40 浏览：945次 张贴报告

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摘要
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℃).
 
关键词
gadolinia-doped ceria coating; atmospheric plasma spray; microstructure; electrical property
报告人
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.

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  • 会议日期

    11-13

    2020

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    11-16

    2020

  • 10-31 2020

    Early Bird Registration

  • 11-05 2020

    Draft paper submission deadline

  • 11-16 2020

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中国机械工程学会表面工程分会

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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

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