Dispersion Hardening of Composites in the System Aluminum Oxide and Cerium Cation Stabilized Tetragonal Zirconium Dioxide

被引：6
|
作者：
Podzorova, L. I. [1 ]
Il'icheva, A. A. [1 ]
Pen'kova, O. I. [1 ]
Alad'ev, N. A. [1 ]
Baikin, A. S. [1 ]
Konovalov, A. A. [1 ]
Morokov, E. S. [2 ]
机构：
[1] Russian Acad Sci, AA Baikov Inst Met & Mat Sci, Moscow, Russia
[2] NM Emmanuel Inst Biochem Phys, Moscow, Russia
来源：
GLASS AND CERAMICS | 2017年 / 74卷 / 5-6期
关键词：
ceramic; composites; aluminum oxide; zirconium dioxide; sol-gel;
D O I：
10.1007/s10717-017-9962-8
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 production of composites based on nanopowders synthesized by the sol-gel method in the system aluminum oxide and tetragonal zirconium dioxide stabilized by cerium cations (Al2O3-[Ce-TZP]) is described. It is shown that modification of the compositions by calcium oxide promotes the formation of composites of a dispersion-hardening phase in the form of long-prismatic grains in the sintering process. The presence of this phase affects the increase of strength and resistance to brittle fracture of composites with a ZrO2 matrix and with an Al2O3 matrix. The strength in static bending of the composites reaches 1000 MPa and the cracking resistance K (1c) increases to 11.0 MPa center dot m(1/2).
引用
收藏
页码：204 / 208
页数：5
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