Large-scale synthesis of Pb1-xLaxTiO3 ceramic powders by molten salt method

被引：24
作者：
Cai, Zongying
Xing, Xianran
Yu, Ranbo
Liu, Guirong
Xing, Qifeng
机构：
[1] Beijing Univ Sci & Technol, Dept Chem Phys, Beijing 100083, Peoples R China
[2] Inst Ordnance Engn, Shijiazhuang 050003, Hebei, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 420卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
molten salt synthesis (MMS); PbxLa1-xTiO3; morphology;
D O I：
10.1016/j.jallcom.2005.10.026
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The ferroelectric perovskite type lanthanurn doped lead titanate (PLT) ceramic powders were synthesized in one step with the starting materials of PbC2O4, La2O3 and TiO2 in NaCl-KCl molten salts in the temperature range of 700-950 degrees C. It was found that molten salt method was a large scale and easy preparation way to produce PLT powders with high dispersity. Tetragonal phase Pb1-xLaTiO3 ceramic powders were identified by XRD in the composition range 0 <= x <= 0.3 and mono-dispersed particles with spheric shape and less than 100 nm size were observed by SEM. The grain sizes of Ph1-xLaxTiO3 ceramic powders increased with the increase of La content and decreased with calcination temperature. The grain growth progress and the possible reaction mechanism in molten salts and its influencing factors were discussed in this work. The grain growth process was the main influencing factor of the grain size, which depended on the solubility in the flux. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：273 / 277
页数：5
相关论文
共 22 条
[1]   Molten salt synthesis of the lead titanate PbTiO3, investigation of the reactivity of various titanium and lead salts with molten alkali-metal nitrites [J].
Aboujalil, A ;
Deloume, JP ;
Chassagneux, F ;
Scharff, JP ;
Durand, B .
JOURNAL OF MATERIALS CHEMISTRY, 1998, 8 (07) :1601-1606
[2]   Dielectric and ferroelectric response of sol-gel derived Pb0.85La0.15TiO3 ferroelectric thin films on different bottom electrodes [J].
Bhaskar, S ;
Majumder, SB ;
Dobal, PS ;
Krupanidhi, SB ;
Katiyar, RS .
THIN SOLID FILMS, 2002, 406 (1-2) :30-39
[3]   Microstructural characterization of sol-gel derived Pb1-xLaxTiO3 ferroelectrics [J].
Chen, J ;
Xing, XR ;
Yu, RB ;
Deng, JX ;
Liu, GR .
JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 388 (02) :308-313
[4]   Structural investigations on ferroelectric Pb1-3/2xLaTiO3 using the x-ray Rietveld method [J].
Chen, J ;
Xing, XR ;
Yu, RB ;
Liu, GR ;
Wu, L ;
Chen, XL .
JOURNAL OF MATERIALS RESEARCH, 2004, 19 (12) :3614-3619
[5]   Molten salt synthesis of acicular Ba2NaNb5O15 seed crystals [J].
Huang, QW ;
Xu, J ;
Zhu, LH ;
Gu, H ;
Wang, PL .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2005, 88 (02) :447-449
[6]   Molten salt prepared lead titanate: Powder characterization, sintering and physical properties [J].
Idrissi, H ;
Aboujalil, A ;
Deloume, JP ;
Fantozzi, G ;
Durand, B .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1999, 19 (11) :1997-2004
[7]  
JAIR BR, 2002, J EUR CERAM SOC, V22, P2927
[8]  
Jiao XL, 2002, CHINESE CHEM LETT, V13, P1017
[9]   Anisotropic grain growth of Bi4Ti3O12 in molten salt fluxes [J].
Kan, YM ;
Jin, XH ;
Wang, PL ;
Li, YX ;
Cheng, YB ;
Yan, DS .
MATERIALS RESEARCH BULLETIN, 2003, 38 (04) :567-576
[10]   Substrate dependence in the growth of epitaxial Pb1-xLaxTiO3 thin films [J].
Kim, Y ;
Erbil, A ;
Boatner, LA .
APPLIED PHYSICS LETTERS, 1996, 69 (15) :2187-2189
123