【摘要】 模拟纳米晶Ｆｅ８９Ｚｒ７Ｂ４合金中的剩余非晶相成分，取纯Ｆｅ粉，Ｚｒ粉，Ｂ粉进行球磨。利用Ｘ射线衍射、法拉第磁天平对球磨过程中的样品结构和磁性进行分析。结果表明，混合粉末经２０ｈ球磨后形成较多的ＦｅＺｒＢ非晶相，球磨２００ｈ后，可获得α－Ｆｅ（Ｚｒ，Ｂ）和富Ｚｒ的非晶相。此时，α－Ｆｅ（Ｚｒ，Ｂ）的晶粒度可达７～９ｎｍ。混合物的饱和磁化强度随球磨时间的增加面迅速下降，在２５ｈ左右达到最低点，然后又有所回升，１００ｈ以后基本趋于定值。更多还原

【Abstract】 The FeZrB powder mixture simulating the residual amorphous matrix phase in the nanocrystalline Fe 89 Zr 7B 4 soft magnetic materials was investigated by mechanical alloying of a mixture of elemental Fe, Zr and B powders. The structure and magnetic properties of the samples were studied by means of X-ray diffraction and Faraday magnetic balance. After milled for 20 hours, a lot of FeZrB amorphous phase were obtained. After milled for 200 hours, a α-Fe(Zr,B) and a Zr-rich amorphous phase were obtained.At that time, the grain size of α-Fe(Zr,B) reached 7～9nm.The saturation magnetization of the powder mixture initially decreased, but began to increase when milling time exceeded 25 hours, and finally reached a constant value when milling time exceeded 100 hours.更多还原