Journal of Materials Science, Vol.35, No.16, 4115-4119, 2000
Emulsion processing of SOFC materials Ca0.3La0.7CrO3, Sr0.16La0.84CrO3, and Sr0.2La0.8MnO3
A novel preparation route to the perovskite materials Ca0.3La0.7CrO3, Sr0.16La0.84CrO3, and Sr0.2La0.8MnO3 is described. The method produces the phase pure perovskite phases after calcination at 700 degrees C for 2 hours. The powders produced are unagglomerated, and consist of hollow spherical particles 0.15 mu m in diameter. EDX has shown that the careful control of reaction conditions is vital to control the phase composition, and that small changes in stoichiometry result in the production of unsinterable powder.