Scandia-stabilized zirconia doped with yttria: Synthesis, properties, and ageing behavior

被引：49

作者：

Spirin, Alexey ^{[1
]}

Ivanov, Victor ^{[1
,2
]}

Nikonov, Alexey ^{[1
]}

Lipilin, Alexander ^{[1
]}

Paranin, Sergey ^{[1
]}

Khrustov, Vladimir ^{[1
]}

Spirina, Alfiya ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Electrophys, Ural Branch, Ekaterinburg 620016, Russia

[2] Russian Corp Nanotechnol, Moscow 117420, Russia

来源：

SOLID STATE IONICS | 2012年 / 225卷

关键词：

Solid electrolyte; Cubic scandia-zirconia; Yttria-doped ScSZ; Ionic conductivity; Ageing behavior; SYSTEM; ELECTROLYTES;

D O I：

10.1016/j.ssi.2012.02.022

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Synthesis, ionic conductivity, and ageing behavior of [x Y2O3-(10 - x) Sc2O3]-90 ZrO2 (x = 2, 3, 4, and 5 mol%) as well as 10-11 mol% Sc2O3-ZrO2 electrolytes are presented. High dense homogeneous ceramic samples with fine microstructure were prepared from laser synthesized mixed nanopowders 10YSZ and 10ScSZ using low sintering temperatures of 1010-1300 degrees C. Stabilization of cubic fluorite-type phase has been achieved for Y-doped ScSZ composites at these temperatures. It is shown that the DC conductivity of the Y-doped ScSZs decreases proportionally to the yttria content throughout the temperature range studied, from 500 to 900 degrees C. Ageing behavior of the electrolytes was studied at 850 degrees C for 1200-2700 h. Low resistivity degradation of Y-doped ScSZ not exceeded 10% during extended annealing for 2700 h has been obtained for the samples sintered below 1100 degrees C. High and stable conductivity has been obtained for 10ScSZ and 11ScSZ. Any decrease in their conductivity during extended annealing was not detected. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：448 / 452

页数：5

共 8 条

[1] An investigation of conductivity, microstructure and stability of electrolyte compositions in the system 9 mol% (Sc2O3-Y2O3)-ZrO2(Al2O3) [J].

Badwal, SPS ;

Ciacchi, FT ;

Rajendran, S ;

Drennan, J .

SOLID STATE IONICS, 1998, 109 (3-4) :167-186

[2] Scandia-zirconia electrolytes for intermediate temperature solid oxide fuel cell operation [J].

Badwal, SPS ;

Ciacchi, FT ;

Milosevic, D .

SOLID STATE IONICS, 2000, 136 :91-99

[3] Aging and Raman scattering study of scandia and yttria doped zirconia [J].

Nomura, K ;

Mizutani, Y ;

Kawai, M ;

Nakamura, Y ;

Yamamoto, O .

SOLID STATE IONICS, 2000, 132 (3-4) :235-239

[4] Laser synthesis of nanopowders [J].

Osipov, V. V. ;

Kotov, Yu. A. ;

Ivanov, M. G. ;

Samatov, O. M. ;

Lisenkov, V. V. ;

Platonov, V. V. ;

Murzakaev, A. M. ;

Medvedev, A. I. ;

Azarkevich, E. I. .

LASER PHYSICS, 2006, 16 (01) :116-125

[5] Investigation of scandia-yttria-zirconia system as an electrolyte material for intermediate temperature fuel cells-influence of yttria content in system(Y2O3)x(Sc2O3)(11-x)(ZrO2)89 [J].

Politova, TI ;

Irvine, JTS .

SOLID STATE IONICS, 2004, 168 (1-2) :153-165

[6] Electrical properties of bulk and grain boundaries of scandia-stabilized zirconia co-doped with yttria and ceria [J].

Preis, W. ;

Waldhaeusl, J. ;

Egger, A. ;

Sitte, W. ;

de Carvalho, E. ;

Irvine, J. T. S. .

SOLID STATE IONICS, 2011, 192 (01) :148-152

[7] SYSTEM ZIRCONIA-SCANDIA [J].

RUH, R ;

GARRETT, HJ ;

DOMAGALA, RF ;

PATEL, VA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1977, 60 (9-10) :399-403

[8] Structural evolution of Sc-containing zirconia electrolytes [J].

Tietz, F ;

Fischer, W ;

Hauber, T ;

Mariotto, G .

SOLID STATE IONICS, 1997, 100 (3-4) :289-295

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