摘要
为了开发作为快增殖堆及聚变堆结构候选材料的ODS铁素体合金,采用氮气雾化方法制备Fe-Cr-Ti-W-V合金粉末。采用溶胶-凝胶法、沉淀法和化学浸润等方法向合金中添加Y2O3颗粒,对各种添加方法得到合金粉中的Y2O3的形貌、粒度、密度分布进行了分析与对比,结果表明:上述3种方法都可以成功地将Y2O3添加到铁素体基合金粉体中;采用溶胶-凝胶法弥散分布Y2O3,可获得Y2O3颗粒分布均匀、直径在50nm以下的颗粒约占总数的50%、颗粒的平均圆度为1.25的基本圆形的粉体。
In order to develop ODS ferrous alloys as a kind of backup materials of fusion nuclear reaction structure, Fe-Cr-Ti-W-V alloy powders were prepared by nitrogen atomization. The sol-gel, chemical soaking and precipitation method have been investigated and used to add Y2O3 particles to Fe-Cr-Ti-W-V alloy powder. The morphology, particle-size and distribution of Y2O3 were analyzed. The results show that above three methods can all successfully realize the mixture of Y2O3 particles and alloy powder, sol-gel method is a effective way to prepare nano scaled oxide powder with homogeneous distribution, the particles of smaller than 50 nm is about half of total, the average roundness is about 1.25.
出处
《粉末冶金技术》
CAS
CSCD
北大核心
2009年第5期346-350,共5页
Powder Metallurgy Technology
基金
国家973计划资助项目(11163060)
关键词
溶胶-凝胶法
沉淀法
化学浸润法
弥散相
sol-gel method
method of precipitation
chemical soaking
dispersoid
