Ceramic Composites of the Zirconium Dioxide and Aluminum Oxide System Including Strontium Hexaaluminate

被引：0
|
作者：
L. I. Podzorova
A. A. Il’icheva
V. P. Sirotinkin
O. S. Antonova
A. S. Baikin
V. E. Kutuzova
O. I. Pen’kova
机构：
[1] A. A. Baikov Institute of Metallurgy and Materials Science,
[2] Russian Academy of Sciences (IMET RAS),undefined
来源：
Glass and Ceramics | 2021年 / 78卷
关键词：
sol-gel; phase formation; microstructure; strength; crack resistance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The preparation and mechanical properties of composites with 20 mol.% Al2O3 and 80% [3Yb–TZP] modified with strontium oxide are considered. It is shown that during heat treatment of the initial nanopowders the strontium hexaaluminate phase is formed in situ. Acorrelation was established between an increase in the concentration of the modifier and an increase in the volume fraction of the strontium hexaaluminate phase. It was revealed that modifier content above 3% brings about an increase in the porosity of the composites. It was determined that composites modified with 1 – 2 mol.% SrO have bending strength 850 MPa and crack resistance K1c up to 11.3 MPa ∙ m1/2.
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页码：231 / 236
页数：5
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