Structural and ionic conductive properties of Bi4V2-xTixO11-δ (0 ≤ x ≤ 0.4) compound

被引：23
|
作者：
Kant, Ravi [2 ]
Singh, K. [1 ]
Pandey, O. P. [1 ]
机构：
[1] Thapar Univ, Sch Phys & Mat Sci, Patiala 147004, Punjab, India
[2] GTBKIET, Dept Appl Sci, Chhapianwali 152107, Malout, India
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2009年 / 158卷 / 1-3期
关键词：
Ceramics; Electrical measurements; Grain boundaries; Phase transitions; BIMEVOX SERIES; OXIDE; ELECTROLYTE; DEPENDENCE; BI4V2O11; ZIRCONIA; BEHAVIOR;
D O I：
10.1016/j.mseb.2009.01.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High conducting gamma-phase can be stabilized at room temperature by substitution of various metal cations in bismuth vanadate known as Bi4V2-xMexO11-delta (Me=metal cation). In the present work Ti2O3-doped, Bi4V2-xMexO11-delta (0 <= x <= 0.4) samples were prepared by ceramic processing route and sintered over a range of temperature (750-825 degrees C) in the interval of 25 degrees C to study the influence of grain size and porosity on the ionic conductivity. A relation between microstructure, crystal structure and conductivity has been established using scanning electron microscopy, X-ray powder diffraction (XRD), a.c. impedance spectroscopy and differential scanning calorimetry (DSC). The study indicates that apart from phase stabilization, microstructure plays an important role to achieve high ionic conductivity. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：63 / 68
页数：6
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