摘要
制备SiC、TiB2 及ZrO2 颗粒弥散强化MoSi2 、Al2 O3基复相陶瓷 ,研究了弥散颗粒及其加入量对材料强韧化效果的影响 ,并探讨了弥散颗粒多重强化协调作用及机理 结果表明 :弥散颗粒的加入量对材料的强韧性有显著影响 ;通过合理的工艺控制 ,不仅在ZrO2 、TiB2 二元颗粒复合弥散强化的Al2 O3基复相陶瓷中 ,而且在单相ZrO2 颗粒弥散强化的MoSi2 基复相陶瓷中 。
MoSi 2 and Al 2O 3 composites added with SiC、TiB 2、ZrO 2 dispersion particles are fabricated. The effect of dispersion particles and the dose on strengthening and toughening is studied. The strengthening and toughening mechanism of dispersion particles is discussed. The results show that the dispersion particles and the dose have significantly effect on the toughness and strength;Controled with reasonable process the double effects of transformation toughening and particles dispersion strengthening are achieved in not only Al 2O 3 matrix composites added with both TiB 2 and ZrO 2 but also MoSi 2 matrix composites added with ZrO 2.
出处
《江苏理工大学学报（自然科学版）》
2000年第6期90-93,共4页
Journal of Jiangsu University of Science and Technology(Natural Science)
基金
江苏省自然科学基金资助项目! (BK9510 610 4 )
