稀土钴永磁体矫顽力的可逆变化

THE REVERSIBLE VARIATION IN COERCIVITY FOR RARE EARTH-COBALT PERMANENT MAGNETS

摘要: 用磁性测量,透射电镜,x射线衍射分析等方法研究了烧结SmCo₅和Sm(CoCuFeZr)_~7.0合金矫顽力可逆变化和不可逆变化的规律和显微组织,并讨论了造成这种可逆变化之原因。

Abstract: The reversible change and irreversible change in coercivity and mioros-tructure for sintered SmCo₅ and Sm(Co, Cu, Fe, Zr)7.0 alloy were studied by magnetic measurement, transmission electron microscopy (TEM) and X-ray diffractions.The causes which lead to these reversible changes have be en discussed.