The Oxidation Behavior of Stainless Steel Powder-made SOFC Supports by Spark Plasma Sintering Technique
The development of solid oxide fuel cells(SOFCs)are moving to low-temperature ranges(≤ 600 ℃)which allows the application of cheap stainless steels to make metal supports.Due to exposing to high temperature,the porous metal support can be oxidized especially in oxygen or moisture environment which fuel cells usually have to experience.In this study,stain steel powders were used to manufacture metal support for SOFCs via spark plasma sintering(SPS)and hot pressing sintering(HPS)techniques.Powders with different size were used to obtain metal supports with different structures.To study the oxidation behavior of the supports,furnace ageing tests were carried out at 500~700 ℃ for different times.The microstructure evolution and associated chemical changes of the materials in the oxidation process was studied in a scanning electron microscope with energy dispersive X-ray spectroscope.Fe-Cr oxides were formed at sintered powder surfaces and internal interfaces.The SPS technique shows its potential to make metal supports used for SOFC commercial applications.
SOFC Metal support Spark plasma sintering Oxidation
Yuan Kang
BGRIMM Technology Group,Beijing 100160,China;BGRIMM Advanced Materials Science & Technology Co.,Ltd,Beijing 102206,China;Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts,Beijing 102206,China
国际会议
北京
英文
1807-1811
2018-09-16（万方平台首次上网日期，不代表论文的发表时间）