Properties of Ceramics Based on Al2o3 with Admixture of Unltradispersed Powder of Al2o3 Synthesized by the Electrochemical Method

被引：0

作者：

Yu. I. Komolikov

I. D. Kashcheev

K. G. Zemlyanoi

V. I. Pudov

机构：

[1] Russian Academy of Sciences,Mikheev Institute of Metal Physics, Ural Branch

[2] Ural Federal University,undefined

来源：

Refractories and Industrial Ceramics | 2019年 / 60卷

关键词：

ultradispersed powders; electrochemical synthesis; aluminum oxide; ceramics; apparent density; microhardness;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We present the results of investigation of the regularities of sintering and properties of corundum ceramics based on alumina with admixtures of ultradispersed powder of Al2O3(Al2O3 UDP) synthesized by the electrochemical method. It is shown that, as the firting temperature and the concentration of Al2O3 UDP increases, we observe a regular elevation of the linear shrinkage, microhardness, and ultimate strength in bending of the ceramics (the maximum values attained at 1550°C are as follows: 27.8%, 17 GPa, and 340 MPa, respectively). The introduction of Al2O3 UDP makes it possible to get an apparent density of the ceramics equal to 3.87 g/cm3 even at 1550°C.

引用

页码：346 / 349

页数：3

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