Microstructure of Ca doped Neodymium based perovskites for SOFC

Abstract

The materials Nd1-xCaxCoO3 (0?x?0.4) are prepared using sol-gel technique. These compounds are formed clearly in the temperature ranges of 600-7000C. The powders are pelletized in different shapes and finally sintered at 12000C for 4 hours. The microstructure of samples is studied using Scanning Electron Microscopy (SEM). SEM measurements show that the porosity is 3-15% and materials are closely packed with small voids