Toughening of yttria-stabilised tetragonal zirconia ceramics

被引：302
作者：
Basu, B [1 ]
机构：
[1] Indian Inst Technol, Dept Mat & Met Engn, Lab Adv Ceram, Kanpur 208016, Uttar Pradesh, India
来源：
INTERNATIONAL MATERIALS REVIEWS | 2005年 / 50卷 / 04期
关键词：
ZrO2; transformation toughening; TZP; microstructure; toughness; microcracking;
D O I：
10.1179/174328005X41113
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Current knowledge of toughening mechanisms in zirconia ceramics is reviewed, with particular emphasis on the transformation toughening of yttria-stabilised polycrystalline tetragonal zirconia (Y-TZP). The physics and mechanics of transformation toughening are discussed, but the main aim is to provide a comprehensive understanding of the role of the metastable tetragonal zirconia phase on stress induced transformation toughening. The focus is on the microstructural variables governing the stability of tetragonal zirconia in the context of transformation toughening. The potential for additional toughening contributions from microcracking and ferroelastic toughening is briefly addressed and the coupling of toughening mechanisms is also discussed. Finally, a perspective on the future development of Y-TZP-based high toughness materials is given.
引用
收藏
页码：239 / 256
页数：18
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