Processing and structural characterisation of 3Y-TZP ceramics resistant to hydrothermal ageing

被引：11

作者：

Rodriquez-Pulido, A ^{[1
]}

Ross, IM ^{[1
]}

Rainforth, WM ^{[1
]}

机构：

[1] Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England

来源：

EURO CERAMICS VII, PT 1-3 | 2002年 / 206-2卷

关键词：

tetragonal zirconia polycrystals; hydrothermal ageing; powder-processing; microstructure;

D O I：

10.4028/www.scientific.net/KEM.206-213.1053

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：

Doped tetragonal zirconia polycrystals (TZP's) have been prepared by the addition of 0, 0.05 and 0.25wt% Al2O3 to a 3mol% ZrO2 powder via co-milling. A modal grain size of 0.34-0.38 mum and fracture toughness K-1c in the range 7.5-7.9 MPa rootm was achieved for all samples after sintering at 1450 degreesC for 3 hours. The addition of trace Al2O3 is shown to have a profound effect on the materials resistance to hydrothermal ageing which was found to increase in the order 0 <0.05 <0.25wt% Al2O3.

引用

页码：1053 / 1056

页数：4

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