| Pressureless
Sintered 3Y-TZP/20%Al2O3 Composite Ceramic |
| |
| 作者姓名： | The stock solutions with cations′
concentration of . mol/L were prepared by dissolving ZrOCl.HO Y |
| |
| 摘 要： | Nanometer 3Y-TZP/20%Al2O3 (mass fraction) composite powders prepared by the chemical coprecipitation method were pressureless sintered at 1550 °C for
2 h. Effects of calcining temperatures at 800 °C, 1 000 °C, and 1 200 °C on phase structure, relative density, and Vicker’s
hardness of the sintered bodies were studied. The results show that 1 000 °C was the optimal calcining temperature, and the
powder calcined was composed of tetragonal zirconia with the Scherrer crystalline size of 6.3nm. The relative density was
up to 98.5% under pressureless sintering, and the sintered body was t-ZrO2 (without m-ZrO2)+α-Al2O3 with the average size of 0.4 μm.
Foundation item: State Key Laboratory for Powder Metallurgy(No.9706-36)
Biography of the first author: YIN Bang-yao, born in 1966, majoring in advanced ceramic materials.
|
| 收稿时间： | 14 September 1999 |
Pressureless sintered 3Y-TZP/20%Al2O3 composite ceramic |
| |
| Yin Bang-yao , Wang Ling-sen , Lin Jian-liang , Zhang Jing-shen and Fan Yi.Pressureless
Sintered 3Y-TZP/20%Al2O3 Composite Ceramic[J].Journal of Central South University of Technology,2000,7(1):12-14. |
| |
| Authors: | Yin Bang-yao Wang Ling-sen Lin Jian-liang Zhang Jing-shen and Fan Yi |
| |
| Affiliation: | (1) State Key Laboratory for Powder Metallurgy, Central South University of Technology, 410083 Changsha, China |
| |
| Abstract: | Nanometer 3Y-TZP/20%Al2O3 (mass fraction) composite powders prepared by the chemical coprecipitation method were pressureless sintered at 1550 °C for
2 h. Effects of calcining temperatures at 800 °C, 1 000 °C, and 1 200 °C on phase structure, relative density, and Vicker’s
hardness of the sintered bodies were studied. The results show that 1 000 °C was the optimal calcining temperature, and the
powder calcined was composed of tetragonal zirconia with the Scherrer crystalline size of 6.3nm. The relative density was
up to 98.5% under pressureless sintering, and the sintered body was t-ZrO2 (without m-ZrO2)+α-Al2O3 with the average size of 0.4 μm.
Foundation item: State Key Laboratory for Powder Metallurgy(No.9706-36)
Biography of the first author: YIN Bang-yao, born in 1966, majoring in advanced ceramic materials. |
| |
| Keywords: | pressureless sintering 3Y-TZP/20%Al2O3 composite phase structure |
| 本文献已被 SpringerLink 等数据库收录！ |
|
