FORMATION AND SINTERING OF YTTRIA-DOPED TETRAGONAL ZIRCONIA WITH 50 MOL-PERCENT ALUMINA PREPARED BY THE HYDRAZINE METHOD

被引:15
作者
KIMOTO, S [1 ]
HIROTA, K [1 ]
YAMAGUCHI, O [1 ]
KUME, H [1 ]
INAMURA, S [1 ]
MIYAMOTO, H [1 ]
机构
[1] OSAKA PREFECTURAL INST IND TECHNOL,OSAKA 550,JAPAN
关键词
D O I
10.1111/j.1151-2916.1994.tb09783.x
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
Al2O3/Y2O3-doped ZrO2 composite powders with 50 mol% Al2O3 are prepared by the hydrazine method. As-prepared powders are mixtures of AlO(OH) gel and amorphous ZrO2 solid solutions containing Y2O3 and Al2O3. The formation process leading to alpha-Al2O3-t-ZrO2 composite powders is examined. Hot isostatic pressing is performed for 2 h at 1400-degrees-C under 196 MPa using theta-Al2O3-t-ZrO2 composite powders. The resulting dense, sintered alpha-Al2O3-t-ZrO2 composites show excellent mechanical strength.
引用
收藏
页码:1694 / 1696
页数:3
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