Microwave Quality Factor of Cation-Deficient Perovskites Ba(M1/32+Nb2/3)O3

被引：2

作者：

Belous, A. G. ^{[1
]}

Ovchar, O. V. ^{[1
]}

Jancar, B. ^{[2
]}

Suvorov, D. ^{[2
]}

机构：

[1] VI Vernadskii Inst Gen & Inorgan Chem NAS Ukraine, UA-03680 Kiev 142, Ukraine

[2] Jozef Stefan Inst, Ljubljana 1000, Slovenia

来源：

FERROELECTRICS | 2012年 / 435卷

关键词：

Ordered perovskites; dielectric properties; quality factor; DIELECTRIC-PROPERTIES;

D O I：

10.1080/00150193.2012.740338

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Non-linear variation of the microwave quality factor (Q) of both A-site and B-site cation deficient perovskites Ba(M1/32+Nb2/3)O-3 (M2+ = Mg, Co, Zn) have been discussed and summarized. Within the homogeneity regions, the observed increase in the Q-factor was attributed to the improvement of either ceramics' densification or 1:2 cation ordering. Out of the homogeneity limits, the changes in the Q-magnitude were shown to depend on the type of main impurity phase: either Ba9M2+Nb14O45 (A-site deficiency) with the tetragonal tungsten bronze structure or Ba8M2+Nb6O24 (B-site deficiency) - hexagonal perovskite.

引用

页码：166 / 175

页数：10

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