Transformation kinetics of Y-TZP zirconia ceramics in simulated physiological solution

被引：5

作者：

Frangini, S ^{[1
]}

Piconi, C ^{[1
]}

di Bartolomeo, A ^{[1
]}

Magnani, G ^{[1
]}

机构：

[1] ENEA, Div Neuovi Mat, IT-00060 Rome, Italy

来源：

BIOCERAMICS | 2000年 / 192-1卷

关键词：

aging; hydrothermal stability; NaCl solution; rectification; tetragonal-to-monoclinic martensitic transformation; Y-TZP zirconia;

D O I：

10.4028/www.scientific.net/KEM.192-195.557

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The hydrothermal stability of Y-TZP zirconia was investigated at 37 degreesC in a NaCl solution by evaluating the kinetics of the phase transformation from tetragonal to monoclinic structure, which is the cause of observed strenght degradation in zirconia materials. The amount of transformed phase was in the order of 5-5 mol% after 1-y aging. Rectification of the surface samples was effective in reducing the transformation rate. Surface transitory hardening observed during the incubation period before the starting of the phase transformation process was related to the initial chemical interaction taking place between water and zirconia.

引用

页码：557 / 560

页数：4

共 7 条

[1]

Clarke IC WG, 1994, Structural ceramics in orthopaedics

[2] EFFECT OF STRESS-INDUCED PHASE-TRANSFORMATION ON PROPERTIES OF POLYCRYSTALLINE ZIRCONIA CONTAINING METASTABLE TETRAGONAL PHASE [J].