摘要
添加尺寸为３７ｎｍ的Ａｌ_２Ｏ_３不仅可以显著地提高通用Ａｌ_２Ｏ_３陶瓷的烧结性能，降低烧结体的晶粒度，而且可以提高烧结体的断裂韧性和抗弯强度．添加量为２０％（摩尔分数）时，能产生最佳增韧和增强作用．
Nano-Al2O3 powders processed by the hydrolysis technique of pure Al sheet after activation were added into Al2O3 ceramics.The results indicated that the nano-Al2O3 addition can increase not only the sinterability of the Al2O3 ceramics, but the fracture toughness and bending strength as well, and this kind of increase can be obtained only when the grain size of the added nano-Al2O3 is small enough, for example,37 nm.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第12期1285-1288,共4页
Acta Metallurgica Sinica
关键词
增韧
增强
三氧化二铝
陶瓷
纳米材料
添加
nano-Al_2O_3 addition, Al_2O_3 ceramic,toughening,strengthening
