Mechanism of phase formation in Pb(ZrxTi1-x)O-3 synthesized by a partial oxalate method

被引：41

作者：

Leite, ER ^{[1
]}

Cerqueira, M ^{[1
]}

Perazoli, LA ^{[1
]}

Nasar, RS ^{[1
]}

Longo, E ^{[1
]}

Varela, JA ^{[1
]}

机构：

[1] UNIV ESTADUAL PAULISTA,INST QUIM,SAO PAULO,BRAZIL

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1996年 / 79卷 / 06期

关键词：

D O I：

10.1111/j.1151-2916.1996.tb08765.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The phase formation mechanism, as well as the morpho-tropic phase boundary, of lead zirconate titanate (PZT) processed by a partial oxalate method was investigated by simultaneous thermal analysis (TG-DTA) and by qualitative and quantitative X-ray diffraction (XRD), The results show that the ZrxTi1-xO2 (ZT) phase reacts with PbO forming the PZT phase without intermediate phases. XRD analysis showed the coexistence of rhombohedral and tetragonal phases for 0.47 less than or equal to x less than or equal to 0.55 with the phase boundary composition for x = 0.51, For low calcination temperatures, preferential formation of the PZT rhombohedral phase was observed. A model for phase formation of PZT by the partial oxalate method is proposed based on the existence of two interfaces of reaction (PbO-PZT and PZT-ZT) and diffusion of cations.

引用

页码：1563 / 1568

页数：6

共 17 条

[1] X-RAY STUDY OF PZT SOLID-SOLUTIONS NEAR MORPHOTROPIC PHASE-TRANSITION [J].