Electrophoretic deposition (EPD) was employed to coat (Mn1.5Co1.5)O-4 spinel layer and La0.8Sr0.2MnO3 layer on Crofer22 APU to improve its corrosion resistance for SOEC interconnect applications. Coatings were obtained by following five steps: (1) charging of the individual particles in suspension in a suitable organic liquid, (2) deposition of (Mn1.5Co1.5)O-4 onto Crofer22 APU, (3) heat treatment of the (Mn1.5Co1.5)O-4 spinel layer, (4) deposition of La0.8Sr0.2MnO3 layer on (Mn1.5Co1.5)O-4 spinel layer and (5) sintering the double coated layers. The coated double layers on Crofer22 APU were sintered at 1200 degrees C for 2 h in argon atmosphere to form a dense film. Microstructural evaluation indicated that the double layers inhibited outward diffusion of chromium. ASR of the La0.8Sr0.2MnO3 layer coated Crofer22 APU with the (Mn1.5Co1.5)O-4 spinel protection layers showed excellent long-term stability and electrical performance. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.