Synthesis of BaTiO3 powder from barium titanyl oxalate (BTO) precursor employing microwave heating technique
Cubic barium titanate (BaTiO3) powder was synthesized by heating barium titanyl oxalate hydrate, BaTiO(C2O4)2·4H2O (BTO) precursor in microwave heating system in air at 500°C. Heating BTO in micro-wave above 600°C yielded tetragonal form of BaTiO3. Experiments repeated in silicon carbide furnace showed that BaTiO3 was formed only above 700°C. The product obtained was cubic.
KeywordsCeramics electronic materials ferroelectrics perovskites microwave synthesis BaTiO3
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