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用机械合金化(MA)锻压方法制备了bcc和fcc结构的块状亚稳态Fe-Cu固溶体系统,并对系统的磁化强度、价电子结构进行了测量和计算,从亚稳态Fe-Cu固溶体的饱和磁化强度MS—e/a(电子/原子)曲线可看出:大约在26.2e/a的区域Ms有最大值,并且在大约28.6e/a的区域接近零.这个结果与Fe-Co和Fe-Ni系统类似(在大约26.2e/a的区域MS最大,在大约28.6e/a时Ms近似为零).由此我们推论:相对在0K亚稳态Fe-Cu固溶体的每原子的电子数字的饱和磁矩(MS)曲线与其它二元过渡金属(Fe-Co和Fe-Ni)的曲线类似.在Cu含量大约为35mol%(此时平均电子结构为27.1e/a)时的混合相区域出现负的曲率.
The bulk metastable Fe-Cu solid solution system with bcc and fcc structure was prepared by mechanical alloying (MA) forging method. The magnetization and valence electron structure of the system were measured and calculated. From metastable Fe-Cu As can be seen from the MS-e / a curve of the solid solution, the Ms at about 26.2e / a has a maximum and approaches zero at about 28.6e / Co is similar to the Fe-Ni system (MS maximum at approximately 26.2e / a, and Ms approximately zero at approximately 28.6e / a.) We therefore inferred that relative to each atom of a 0K metastable Fe-Cu solid solution The saturation magnetization (MS) curve of the electron number is similar to that of the other binary transition metals (Fe-Co and Fe-Ni). At a Cu content of about 35 mol% (average electron structure at this time is 27.1 e / a) Of the mixed phase region appears negative curvature.