摘要
在１３３．３２Ｐａ压强的Ａｒ，Ｎ２两种不同气体中制备了以Ｆｅ９０Ｂ１０为母材的超细微粒．两种微粒的粒径、形态基本一致，但晶化程度及磁性很不一样．通过化学滴定法对两种微粒进行的Ｆｅ含量分析表明二者差别很大．
The ultrafine particles are produced with Fe 90 B 10 as parent material in Ar and in N 2 at 133 32Pa pressure.Though the particles size and morphology are nearly identical,the degree of crystallizing and magnetic properties are different.The difference of Fe content for the two particles,which are analysied by chemical titration method,is marked.It could be that the effects of different cooling gases on activity coefficient of the melts are different,which cause difference of composition on the particles produced in Ar and in N 2.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第2期140-143,共4页
Journal of Southwest China Normal University(Natural Science Edition)
关键词
气体蒸发法
超细微粒
冷凝气体
铁合金
gas evaporation method
ultrafine particles
cooling gas,Fe B alloy
activity
