Comparison of citrate gel combustion and precursor plasma spray processes for the synthesis of yttrium aluminum garnet

摘要

The influence of synthesis conditions on the formation of yttrium aluminum garnet (YAG) powders starting from the same solution precursors was investigated by employing a citrate-nitrate gel combustion process and a precursor plasma spraying technique. YAG powders were formed at ≤500 deg. C, through the citrate-nitrate gel combustion process, without any intermediate phase formation. Time-resolved x-ray experiments were performed for the first time on these citrate-nitrate precursor materials to understand their mode of decomposition.