摘要
用多元机械合金化和热压烧结的方法制备添加 Cr的 Fe- Al/ Al2 O3复合材料 ,经力学性能测试及 X射线衍射、能谱和透射电镜分析表明 ,含有适量 Cr的 Fe- Al/ Al2 O3复合材料断裂韧性大大提高 ,最高可达 15 .0 0 MPa· m1 /2以上。并且在复合材料中形成了棒晶和“N”型结构 。
Fe Al/Al 2O 3 composites were prepared by the method of mechanical alloying and hot pressing sintering The sample was tested by the methods of X ray diffraction, spectrum, and TEM We found that the fracture toughness of the composites was increased sharply, and the highest number exceeded 15 00MPa·m 1/2 At the same time, the rod crystal and 'N' type structure were advantageous to the toughness of the composites
出处
《材料工程》
EI
CAS
CSCD
北大核心
2001年第9期21-24,共4页
Journal of Materials Engineering
基金
山东省自然科学基金 ( Q99F0 1
Z99F0 2 )资助
