| (Y,Ce)TZP-Al_2O_3陶瓷显微组织对力学性能及热稳定性的影响 |
| |
| 引用本文： | 杨如增,陈昶,佘正国.(Y,Ce)TZP-Al_2O_3陶瓷显微组织对力学性能及热稳定性的影响[J].江苏大学学报(自然科学版),1993(4). |
| |
| 作者姓名： | 杨如增 陈昶 佘正国 |
| |
| 作者单位： | 江苏工学院材料工程系
(杨如增，陈昶)，江苏工学院材料工程系(佘正国) |
| |
| 摘 要： | 研究了(Y、Ce)TZP-Al_2O_3陶瓷的显微组织对其力学性能和热稳定性的影响。结果表明,试样表面t-ZrO_2失稳相变是造成低温时效和热循环条件下材料强度下降的主要原因。添加CeO_2稳定剂和Al_2O_3相可较大幅度地提高(Y,Ce)TZP-Al_2O_3陶瓷的力学性能及热稳定性。1550℃烧结晶粒尺寸0.9μm,其力学性能和热稳定性综合性能优越。
|
| 关 键 词： | ZrO_2陶瓷 力学性能 热稳定性 低温时效 |
Effect of Microstructure of (Y, Ce)TZP-Al2O3 Ceramics on Their Mechanical Properties and Thermal Stability |
| |
| Yang Ruzeng Chen Chang She Zhengguo.Effect of Microstructure of (Y, Ce)TZP-Al2O3 Ceramics on Their Mechanical Properties and Thermal Stability[J].Journal of Jiangsu University:Natural Science Edition,1993(4). |
| |
| Authors: | Yang Ruzeng Chen Chang She Zhengguo |
| |
| Institution: | Yang Ruzeng Chen Chang She Zhengguo |
| |
| Abstract: | Studied is the effect of microstructure of (Y, Ce)TZP-Al2O3 cermics on their mechanical properties and thermal stability. The experimental results show that the strength of (Y, Ce)TZP-Al2O3 ceramics is degraded by low temperature annealing and thermal cycling tests in air because of the tetragonal (t) to monoclinic (m) phase transformation; Addition of ceria and alumina in the (Y,Ce)TZP-Al2O3 composites will improve. Sintered at 1550C for 3h, (Y, Ce)TZP-Al2O3 ceramics with grain size 0.9 um exhibits remarkable mechanical properties and themal stability. |
| |
| Keywords: | ceramics mechanical properties termal stability / low temperature annealing |
| 本文献已被 CNKI 等数据库收录！ |
