INFLUENCE OF POLYMERIZATION ON THE SYNTHESIS OF SRTIO3 .2. PARTICLE AND AGGLOMERATE MORPHOLOGIES

被引：41

作者：

LEITE, ER ^{[1
]}

VARELA, JA ^{[1
]}

LONGO, E ^{[1
]}

PASKOCIMAS, CA ^{[1
]}

机构：

[1] UNIV NACL ESTADUAL SAO PAULO,INST QUIM,BR-14800 ARARAQUARA,SP,BRAZIL

来源：

CERAMICS INTERNATIONAL | 1995年 / 21卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/0272-8842(95)90904-W

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：

Morphologies of SrTiO3 particles and agglomerates synthesized by the traditional Pechini route and by the polymer precipitation route were characterized by the nitrogen adsorption/desorption technique and by transmission electron microscopy (TEM). A cluster structure of nanometric particles forming large agglomerates which are broken during pressing followed by cluster rearrangement was observed. The mean particle size is larger for SrTiO3 obtained by the Pechini route and is related to the precursor thermal decomposition and particle growth during calcination. The particle growth is controlled by neck growth among particles and further motion of the particle boundary.

引用

页码：153 / 158

页数：6

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