INFLUENCE OF POLYMERIZATION ON THE SYNTHESIS OF SRTIO3 .1. CHARACTERISTICS OF THE POLYMERIC PRECURSORS AND THEIR THERMAL-DECOMPOSITION

被引：85

作者：

LEITE, ER

SOUSA, CMG

LONGO, E

VARELA, JA

机构：

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

[2] UNIV FED SAO CARLOS, CCDM, DEPT MAT ENGN, BR-13560 SAO CARLOS, 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)90903-V

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 influence of polymerization on the thermal decomposition of polymeric precursors and phase formation was investigated during synthesis of SrTiO3. The precipitation of polymeric precursor in acetone produced a more thermal stable precursor with lower weight loss during decomposition. This more stable precursor retarded the formation of the SrTiO3 phase. From thermal analysis, XRD and FT-IR the presence of an intermediate phase during decomposition of the precursors was observed. This is a mixed (Sr,Ti) carbonate phase with the proposed composition of Sr2Ti2O5.CO3.

引用

页码：143 / 152

页数：10

共 18 条

[1]

[Anonymous], [No title captured], Patent No. [3.330.697, 3330697]

[2] OCCURRENCE OF EXCESS TITANIA IN STRONTIUM-TITANATE PREPARED BY THE OXALATE PRECIPITATION ROUTE [J].