USE OF SUCCINIC ACID TO TEST THE STABILITY OF PTCR BARIUM-TITANATE CERAMICS UNDER REDUCING CONDITIONS

被引：20

作者：

SINCLAIR, DC

WEST, AR

机构：

[1] Department of Chemistry, University of Aberdeen, Aberdeen, AB9 2UE, Meston Walk

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1995年 / 78卷 / 01期

关键词：

D O I：

10.1111/j.1151-2916.1995.tb08393.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：

On heating positive temperature coefficient of resistance (PTCR) BaTiO3 ceramics at 350 degrees C in succinic acid powder, a reducing atmosphere is created as the succinic acid pyrolyzes. Grain boundary resistances, which may give a PTCR effect, are reduced by this treatment, whereas surface layer resistances, which may also give a PTCR effect, are much less affected.

引用

页码：241 / 244

页数：4

共 18 条

[1] GRAIN-BOUNDARY CHEMISTRY OF BARIUM-TITANATE AND STRONTIUM-TITANATE .2. ORIGIN OF ELECTRICAL BARRIERS IN POSITIVE-TEMPERATURE-COEFFICIENT THERMISTORS [J].