Analysis of electric properties of ZrO2-Y2O3 single crystals using teraherz IR and impedance spectroscopy techniques

被引：12

作者：

Artemov, V. G. ^{[1
]}

Kuritsyna, I. E. ^{[2
]}

Lebedev, S. P. ^{[1
]}

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

Kapralov, P. O. ^{[1
]}

Spektor, I. E. ^{[1
]}

Kharton, V. V. ^{[2
,3
]}

Bredikhin, S. I. ^{[2
]}

Volkov, A. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Prokhorov Inst Gen Phys, Moscow 119991, Russia

[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia

[3] Univ Aveiro, Dept Mat & Ceram Engn, CICECO, P-3800 Aveiro, Portugal

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2014年 / 50卷 / 07期

关键词：

single crystals of stabilized zirconia; impedance spectroscopy; broad-band dielectric spectroscopy; conductivity; dielectric permeability; GRAIN-BOUNDARIES; YTTRIA; CERAMICS;

D O I：

10.1134/S1023193514070039

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The data obtained by impedance spectroscopy (1 Hz to 32 MHz) and broad-band dielectric spectroscopy (30 GHz-150 THz) are presented for crystals based on zirconia doped by 1.5-30 mol % Y2O3 or 10 mol % Sc2O3 and 1 mol % Y2O3. The maximum of ionic conductivity is confirmed for the latter composition in the working temperature range of solid oxide fuel cells where the doping by scandium and yttrium oxides makes it possible to obtain isotropic single crystals. Dependences of dielectric permeability and high-frequency conductivity of materials on the composition of crystals and temperature are presented.

引用

页码：690 / 693

页数：4

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