INFLUENCE OF CALCINING TEMPERATURE ON CUO-MODIFIED (BA0.8SR0.2)(TI0.9ZR0.1)O3 CERAMICS

被引：11
|
作者：
YANG, CF
WU, L
WU, TS
机构：
[1] Department of Electrical Engineering, National Cheng Kung University, Tainan, TWN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1992年 / 31卷 / 07期
关键词：
INTERMEDIATE PHASE; RESIDUAL; ENDOTHERM; TETRAGONAL; ABNORMAL GRAIN; DOUBLET;
D O I：
10.1143/JJAP.31.2170
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The sintering of (Ba0.8Sr0.2)(Ti0.9Zr0.1)O3 (abbreviated as BSTZ) with different amounts of CuO, which is used as the liquid phase promoter for lowering the temperature required to densify BSTZ, is studied using two types of calcined powders. For 1050-degrees-C calcination, the calcined powder contains BaTiO3, SrTiO3 and some raw materials such as ZrO2 and BaCO3. With sintering, some residual raw materials form unknown phases or low-dielectric-constant compounds with CuO, causing the liquid phase effect of CuO to disappear. For 11 70-degrees-C calcination, the calcined powder completely forms ABO3 phases containing (Ba, Sr)TiO3 and BaZrO3. The sintering temperature for densification of ceramics is lowered, and the firing characteristics critically depend on the amount of CuO added and the sintering temperature.
引用
收藏
页码：2170 / 2176
页数：7
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