HOT CORROSION STUDIES OF ZIRCONIA CERAMICS

被引：59

作者：

JONES, RL

WILLIAMS, CE

机构：

[1] US Naval Research Lab, Washington,, DC, USA, US Naval Research Lab, Washington, DC, USA

来源：

SURFACE & COATINGS TECHNOLOGY | 1987年 / 32卷 / 1-4期

关键词：

CERAMIC MATERIALS - Chemical Attack - GAS TURBINES - Protective Coatings - REFRACTORY MATERIALS - Zirconia - SALTS - Molten - VANADIUM COMPOUNDS - Chemical Reactions;

D O I：

10.1016/0257-8972(87)90119-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The corrosion of stabilized zirconia ceramics by vanadic salts at 700-900 degree C was investigated to elucidate the mechanisms of attack, and to determine the effects of the chemical reactivity of the stabilizing oxide (CeO//2, Y//2O//3) and of the physical structure of the zirconia (sintered, rapidly solidified (RS), single crystal (SC)). The SC and RS zirconias were less degraded in molten NaVO//3 than was sintered zirconia. The results are discussed in terms of understanding ceramic molten salt corrosion, and the development of corrosion-resistant stabilized zirconias. Stabilized zirconia ceramics are being developed for use as blade coatings in gas turbines.

引用

页码：349 / 358

页数：10

共 10 条

[1]

BARKALOW RH, 1979, 1ST P C ADV MAT ALT, P704

[2]

BRATTON RJ, 1982, 2ND P C ADV MAT ALT, P6

[3] INTERPRETATION OF GLASS CHEMISTRY IN TERMS OF OPTICAL BASICITY CONCEPT [J].