Synthesis and characterization of dielectric compositions in the BaO-rich corner of the BaO-Y2O3-TiO2 ternary system

被引:7
作者
Chen, A
Zhi, Y
Ferreira, VM
Vilarinho, PM
Baptista, JL
机构
[1] ZHEJIANG UNIV,DEPT PHYS,HANGZHOU 310027,PEOPLES R CHINA
[2] UNIV AVEIRO,DEPT CERAM & GLASS ENGN,P-3800 AVEIRO,PORTUGAL
关键词
D O I
10.1016/0955-2219(96)00026-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
A single-phase YBa3Ti2O8.5 ceramic located in the BaO-rich corner of the BaO-Y2O3-TiO2 ternary system was synthesized. The dielectric properties of this material (permittivity epsilon = 29, quality factor Q = 1000) are reported here for the first time. Compositions with the BaO:Y2O3:TiO2 ratio equal to 6:1:5 and 5:1:4 were also synthesized. The Y615 ceramic consists of two phases (YBa3Ti2O8.5 and BaTiO3), and the Y514 ceramic consists of three phases (YBa3Ti2O8.5, BaTiO3, and Y2TiO5). They are dense ceramic composites. (C) 1996 Elsevier Science Limited.
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收藏
页码:1051 / 1056
页数:6
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