Abstract
Abstract Growth behavior of Y 2 BaCuO 5 (211) second phase particle in a Ba 3 Cu 5 O x liquid phase was investigated by applying the liquid infiltration technique to 211 powder compacts. Heating 211 compacts surrounded by the liquid-forming powders with or without CeO 2 addition to 1100°C and holding for various time periods up to 10 h, the liquid-forming powders melted and infiltrated into 211 compacts. The 211 coarsening in the infiltrated liquid phase with CeO 2 addition was significantly suppressed compared to that in the liquid phase without CeO 2 addition. It is concluded that CeO 2 acts as a grain growth inhibitor for 211.
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