High-strength ceramics from ZrO2

被引：1

作者：

Akimov, GY ^{[1
]}

Vereshchak, VG

Vasil'ev, AD

Timchenko, VM

Chaika, EV

Grabchuk, AD

机构：

[1] Natl Acad Sci Ukraine, Donetsk Physicotech Inst, Donetsk, Ukraine

[2] Dnepropetrovsk State Chem Engn Inst Ukraine, Dnepropetrovsk, Ukraine

[3] Natl Acad Sci Ukraine, Inst Problems Mat Sci, Kiev, Ukraine

来源：

REFRACTORIES AND INDUSTRIAL CERAMICS | 1998年 / 39卷 / 9-10期

关键词：

Crack Resistance; Press Mold; Yttrium Nitrate; Ultradisperse Powder; Granulate Powder;

D O I：

10.1007/BF02770593

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：

Specimens of powder fabricated by codeposition of zirconium and yttrium nitrates with the using special drying techniques and regranulation by the method of hot isostatic pressing have been tested in air allowing for the laws of compaction of granulated powder at a final firing temperature of about 1500 degrees C. The resulting material had the following properties: a density rho = 5.91 g/cm(3) (98% of the theoretical value), an ultimate bending strength sigma(bend) = 1100 MPa, and a crack resistance K-1c = 19.5 MPa . m(1/2). A set of the specimens was subjected to hot isostatic pressing after natural sintering and exhibited the following properties: rho = 6.08 g/cm(3), sigma(bend) = 1400 MPa, K-Ic = 17.5 MPa .m(1/2).

引用

页码：324 / 325

页数：2