Synthesis of Li2TiO3 ceramic breeder powders by in-situ hydrolysis and its characterization
Synthesis of Li2TiO3 ceramic breeder powders by in-situ hydrolysis and its characterization
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原位水解法合成Li2TiO3陶瓷增殖粉体及其表征
DOI：
10.1016/j.matlet.2012.08.082
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发表时间：
2012-12-15
影响因子：
3
通讯作者：
Kong, Long
中科院分区：
文献类型：
--
作者：
Li, Yunjiao;Xu, Cang;Kong, Long
以TiCl4和LiOH为原料，在100 ℃以下采用原位水解法制备了纯相、细晶的Li2TiO3粉体。通过控制水解条件直接合成了Li2TiO3前驱体。随后通过在800 ℃煅烧6小时将前体转化为Li2TiO3。得到的Li2TiO3粉末的平均尺寸为80 nm，并且显示出高的相纯度和结晶性。Li2TiO3颗粒具有优异的烧结性能，线收缩率为12%，理论密度（T.D.）在1050 ℃下反应4小时。结果表明，原位水解法是一种较好的合成高相纯、烧结性好的Li2TiO3粉体的可行方法。(C)2012爱思唯尔有限公司版权所有。
A novel in-situ hydrolysis method has been developed to prepare phase-pure and fine-grained Li2TiO3 powders, using TiCl4 and LiOH center dot H2O as the raw materials at temperature below 100 degrees C. The Li2TiO3 precursor was directly synthesized by controlling hydrolysis conditions. The precursor was subsequently converted to Li2TiO3 by calcination at 800 degrees C for 6 h. The obtained Li2TiO3 powders were 80 nm in size on an average and showed a high phase purity and crystallinity. The Li2TiO3 pellets exhibited an excellent sinterability with 12% of linear shrinkage and 90% of Theoretical Density (T.D.) obtained at 1050 degrees C for 4 h. The results show that the present in-situ hydrolysis method is a preferable and practically viable process to synthesize highly phase-pure and sinterable Li2TiO3 powders. (C) 2012 Elsevier B.V. All rights reserved.