Electrical behavior of nickel coated YSZ cermet prepared by electroless coating technique

被引：29

作者：

Pratihar, SK ^{[1
]}

Das Sharma, A ^{[1
]}

Maiti, HS ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Ceram Engn, Rourkela 769008, India

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2006年 / 96卷 / 2-3期

关键词：

Ni/YSZ cermets; solid oxide fuel cells; electrical conductivity; microstructure;

D O I：

10.1016/j.matchemphys.2005.07.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nickel-yttria stabilized zirconia (Ni/YSZ) cermet has been prepared by coating YSZ particles with metallic nickel using electroless coating technique. Concentration of nickel was varied between 7.23 and 64.99 wt%. Bulk samples were prepared using these nickel coated YSZ powders by uniaxial pressing followed by sintering in the temperature range 1200-1350 degrees C with a soaking time of 2-6 h. A thorough investigation on the electrical characteristics of the samples has been performed and an attempt has been made to study the effect of starting YSZ particle size, matrix density on the temperature dependence of conductivity of the cermet. Samples prepared by this technique shows metallic conductivity at a Ni concentration as low as 27.04 wt%. A detailed microstructural investigation of the samples is also reported. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：388 / 395

页数：8

共 22 条

[1] Correlated resistor network study of porous solid oxide fuel cell anodes [J].