Synthesis and characterization of PLZT (9/65/35) by the Pechini method and partial oxalate

被引：30

作者：

Cerqueira, M

Nasar, RS ^{[1
]}

Leite, ER

Longo, E

Varela, JA

机构：

[1] UFRN, Dept Quim, BR-59078970 Natal, RN, Brazil

[2] UFSCar, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil

[3] UNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil

来源：

MATERIALS LETTERS | 1998年 / 35卷 / 3-4期

基金：

巴西圣保罗研究基金会;

关键词：

synthesis; Pechini process; zirconium titanate; ZrTiO4; Pb containing ZrTiO4 (PLZT);

D O I：

10.1016/S0167-577X(97)00240-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZrTiO4 (ZT), obtained by the Pechini method, was used as precursor for obtaining PLZT (lead lanthanum zirconium titanate). An aqueous solution of oxalic acid was prepared with particles of ZT, Pb(NO3)(2) and La2O3. After the PbC2O4 and La2O3 precipitate on ZT particles, the materials were calcined and X-ray diffraction (XRD) showed the cubic phase of PLZT. This material was sintered, in two steps, and a density of about 8.0 g/cm(3) was obtained. After the second sintering the XRD pattern showed the occurrence of tetragonal and rhombohedral phases. This was caused by a stoichiometric deviation and the material showed a high optical transparency. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：166 / 171

页数：6

共 13 条

[1] SYNTHESIS OF ULTRA-FINE CRYSTALLINE ZRXTI1-XO4 POWDER BY POLYMERIC PRECURSOR METHOD [J].