摘要
采用超重力场燃烧合成技术,通过在燃烧体系底部放入一定厚度的1Cr18Ni9Ti不锈钢板,在制备高性能TiC-TiB2凝固陶瓷的同时,实现了陶瓷—不锈钢的部分熔化扩散焊,进而制备出了陶瓷—金属层状复合材料。经FESEM观察,陶瓷—不锈钢之间存在原子互扩散现象,在扩散过渡层区形成了富钛碳化物呈相间分布且细小的TiB2镶嵌其上的凝固组织。同时,在陶瓷侧存在Al2O3夹杂。
Using combustion synthesis technology in high-gravity field, one new layered composite of the ceramic to stainless steel was prepared by introducing stainless steel plate at the bottom of combustion system and forming partial fusion-induced diffusion joint of TiC-TiB2 with stainless steel when preparation of the ceramic. FESEM images show that inter-diffusion of atoms between the ceramic and Ti alloy is the reason for the formation of diffusiontransition zone. Fine TiB2 platelets are embedded in the matrix of Ti alloy alternating with Ti-enriehed carbides. There are coarsened Al2 O3 inclusions in the ceramic side.
出处
《粉末冶金工业》
CAS
北大核心
2012年第4期46-50,共5页
Powder Metallurgy Industry
关键词
陶瓷/金属焊接
燃烧合成
超重力场
ceramic-metal joint
combustion synthesis
high gravity field
