[G] High Temperature Oxidation and Corrosion(2)

[370] A new way to protect cathode materials from Cr poisoning by Co-W alloy coating for SOFC application

*GAN Lu^1,2, MURAKAMI Hideyuki^1,2, MONTERO Xabier³, SAEKI Isao⁴ (1. National Institute of Materials Science、2. Waseda University、3. DECHEMA-Forschungsinstitut、4. Muroran Institute of Technology)

Keywords:SOFC cathode materials、Co-W coating、ASR、Cr diffusion

Our group built cathodic half cells with Co-W protective coating between the cathode materials and interconnectors. After exposure at 1073 K for 500 h, Cr outward diffusion was significantly reduced.