Al_2O_3/3Y-TZP层状复合材料的制备及其超塑性能  

FABRICATION AND SUPERPLASTICITY OF Al_2O_3/3Y-TZP LAMINATED COMPOSITE

作　　者：张凯锋[1] 王国峰[1] 王振杰[1] 王长文[1] 韩文波[1] 

机构地区：[1]哈尔滨工业大学材料科学与工程学院,哈尔滨150001

出　　处：《复合材料学报》2005年第3期64-69,共6页Acta Materiae Compositae Sinica

基　　金：哈尔滨工业大学校基金资助(Hit.2002.36);国家自然科学基金资助项目(50375037)

摘　　要：采用流延制膜和热压烧结工艺制备了Al2O3/3YTZP层状复合材料。用SEM观察显微组织,并采用高温深拉实验对该材料进行了超塑性能研究。结果表明:1550℃热压烧结制备的材料晶粒细小,界面结合良好;当应变速率一定时,变形温度对Al2O3/3YTZP层状复合材料的超塑性能具有重要影响,1500℃时得到深拉成形最大高度,温度较高和较低时超塑性能均会降低。Al2O3/3Y-TZP laminated composite was fabricated using the tape casting and hot-press sintering. The microstructure was observed by SEM. The as-received material was deep-drawn at high temperatures to research its superplasticity. The results show that the microstructure of the material sintered at 1550°C has fine grain and strong interfaces. When the strain rate is constant, the forming temperature has great influence on the superplasticity of Al2O3/3Y-TZP laminated composite. The greatest deformation height of deep-drawing was obtained at 1500°C. It is worse at higher or lower forming temperatures.

关 键 词：流延 热压烧结 超塑成形 深拉 陶瓷基层状复合材料 

分 类 号：TB301[一般工业技术—材料科学与工程]