水热合成钛酸铋

ISAF '96. Proceedings of the Tenth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1996-08-18 DOI:10.1109/ISAF.1996.598177

A. V. Prasada Rao, S. Komarneni

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引用次数: 1

摘要

以铋和钛共沉淀的水合氧化物为原料，在240℃的温度下，采用水热法制备了钛酸铋粉体。所得粉末的显微结构研究显示，聚集体约为5-10 /spl μ m。由上述粉末制成的球团样品在1050/spl℃下热处理2小时，理论密度为93.3%。烧结球团破碎面出现10 ~ 20个/亩/米量级的大片状颗粒，表明晶粒生长广泛。

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Hydrothermal synthesis of bismuth titanate

Bismuth titanate powder was synthesized at 240/spl deg/C by hydrothermal method using bismuth and titanium coprecipitated hydrous oxides. Microstructural investigation of resultant powder revealed aggregates of about 5-10 /spl mu/m. Pelletized samples derived from the above powder when heat treated at 1050/spl deg/C for 2 hrs showed 93.3% theoretical density. Fractured surface of sintered pellet showed large platelets of the order of 10-20 /spl mu/m indicating extensive grain growth.

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ISAF '96. Proceedings of the Tenth IEEE International Symposium on Applications of Ferroelectrics

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