Low-temperature sintering of Bi4Ti3O12 derived from a co-precipitation method

被引：39
|
作者：
Kan, YM
Wang, PL [1 ]
Li, YX
Cheng, YB
Yan, DS
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
[2] Monash Univ, Sch Phys & Mat Engn, Clayton, Vic 3168, Australia
来源：
MATERIALS LETTERS | 2002年 / 56卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Bi4Ti3O12; co-precipitation; low temperature; sintering;
D O I：
10.1016/S0167-577X(02)00636-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Bi4Ti3O12 powder was prepared by a co-precipitation method and characterized with DTA, XRD, IR, BET and TEM. The results indicated that the as-prepared precursor consisted of well-dispersed particles of about 10 nm. Bi4Ti3O12 phase began to form at 470 degreesC, and pure Bi4Ti3O12 was obtained after being calcined at 550 degreesC for 0.5 h. The powder obtained at 600 degreesC showed a tetragonal symmetry and a plate-like morphology with particle size of about 100 nm. Bi4Ti3O12 ceramics with 97.2% of theoretical density can be obtained by pressure-less sintering at 750 degreesC for I It, indicating the excellent sinterability of the prepared powder. (C) 2002 Elsevier Science B.V All rights reserved.
引用
收藏
页码：910 / 914
页数：5
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