Nanostructured composite ceramic materials in the ZrO2-Al2O3 system

被引:13
|
作者
Khrustov, V. R. [1 ]
Ivanov, V. V. [1 ]
Kotov, Yu. A. [1 ]
Kaigorodov, A. S. [1 ]
Ivanova, O. F. [1 ]
机构
[1] Russian Acad Sci, Ural Div, Inst Electrophys, Ekaterinburg 620016, Russia
关键词
D O I
10.1134/S1087659607040128
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 composite ceramic materials based alumina and zirconia in the monoclinic form (10 wt %) or the tetragonal form stabilized by yttrium (7-45 wt %) are produced from metastable nanopowders through magnetic pulsed compaction followed by free sintering. The specific features revealed in the shrinkage are investigated at temperatures in the range 1400-1500 degrees C. The development of the microstructure and polymorphic transformations are analyzed using X-ray diffraction and atomic-force microscopy. The fracture toughness and the microhardness of the samples are determined by the indentation technique.
引用
收藏
页码:379 / 386
页数:8
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