Interaction of NiO with yttria-stabilized zirconia

被引：75

作者：

Kuzjukevics, A ^{[1
]}

Linderoth, S ^{[1
]}

机构：

[1] LAS,INST INORGAN CHEM,LV-2169 RIGA,LATVIA

来源：

SOLID STATE IONICS | 1997年 / 93卷 / 3-4期

关键词：

yttria-stabilized zirconia; nickel oxide; solubility; ultrafine powders; plasma synthesis;

D O I：

10.1016/S0167-2738(96)00529-2

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：

As-prepared and heat treated plasma-produced 8 and 10 mol% yttria-stabilized zirconia (YSZ) powders doped with 0, 5, 10 and 75 mol% NiO have been investigated by XRD. The as-prepared powders are mixtures of metastable tetragonal and cubic phases but they transform to a single YSZ phase upon heat treatment above 1200 degrees C. The solubility of NiO in yttria-stabilized zirconia is less than 2 mol% at 1600 degrees C and varies little within the investigated yttria concentration range. The solubility increases with increasing temperature and the total NiO concentration. The activation energy of the solubility is about 0.25 eV.

引用

页码：255 / 261

页数：7

共 17 条

[1]

ALPERINE S, 1992, 37 ASME C GAS TURB A, P1

[2] EFFECT OF NIO DISSOLUTION ON THE TRANSFORMATION OF PLASMA-SPRAYED Y-PSZ [J].