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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Study on bi-layered ceramics powders prepared by the mechanochemical synthesis
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Study on bi-layered ceramics powders prepared by the mechanochemical synthesis

机译：机械化学合成制备双层陶瓷粉的研究

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摘要

Bi-layered structured ferroelectric materials—bismuth titanate, Bi_4Ti_3O_(12) (BIT) and barium-bismuth titanate, BaBi_4Ti_4O_(15) (BBT) powders were prepared by homogenization and sintering of mixture of stehio-metric quantities of bismuth titanate and barium titanate obtained via mechanochemical synthesis. The Bi_4Ti_3O_(12) ceramic was obtained at 1000 deg C for 4h and BaBi_4Ti_4O_(15) ceramic at 1100 deg C for 4h. The phase formation and properties of Bi_4Ti_3O_(12) and BaBi_4Ti_4O_(15) were studied using XRD, Raman spectroscopy, EDS and SEM. Microstructure of Bi_4Ti_3O_(12) and BaBi_4Ti_4O_(15) exhibits plate-like grains typical for the bi-layered structured material. The Ba~(2+) addition leads to the change in the microstructure development, particularly in the change of the average grain size.
机译：双层结构化铁电材料-钛酸铋，Bi_4Ti_3O_（12）（BIT）和钛酸钡铋，BaBi_4Ti_4O_（15）（BBT）粉末是通过将等量的钛酸铋和钛酸钡的混合物进行均质和烧结而制备的通过机械化学合成获得。在1000摄氏度下获取Bi_4Ti_3O_（12）陶瓷4h，在1100摄氏度下获取BaBi_4Ti_4O_（15）陶瓷4h。利用XRD，拉曼光谱，EDS和SEM研究了Bi_4Ti_3O_（12）和BaBi_4Ti_4O_（15）的相形成和性质。 Bi_4Ti_3O_（12）和BaBi_4Ti_4O_（15）的微观结构表现出典型的双层结构材料的板状晶粒。 Ba〜（2+）的添加导致显微组织发展的变化，特别是平均晶粒尺寸的变化。

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