Jeż Bartłomiej, Wysłocki Jerzy, Walters Simon, Postawa Przemysław, Nabiałek Marcin
Department of Physics, Faculty of Production Engineering and Materials Technology, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Polabd.
Division of Engineering School of Computing, Engineering and Mathematics, University of Brighton, BN2 4GJ Brighton, UK.
Materials (Basel). 2020 Mar 18;13(6):1367. doi: 10.3390/ma13061367.
The structure of amorphous alloys still has not been described satisfactorily due to the lack of direct methods for observing structural defects. The magnetizing process of amorphous alloys is closely related to its disordered structure. The sensitivity of the magnetization vector to any heterogeneity allows indirect assessment of the structure of amorphous ferromagnetic alloys. In strong magnetic fields, the magnetization process involves the rotation of a magnetization vector around point and line defects. Based on analysis of primary magnetization curves, it is possible to identify the type of these defects. This paper presents the results of research into the magnetization process of amorphous alloys that are based on iron, in the areas called the approach to ferromagnetic saturation and the Holstein-Primakoff para-process. The structure of a range of specially produced materials was examined using X-ray diffraction. Primary magnetization curves were measured over the range of 0 to 2 T. The process of magnetizing all of the tested alloys was associated with the presence of linear defects, satisfying the relationship D < 1. It was found that the addition of yttrium, at the expense of hafnium, impedes the magnetization process. The alloy with an atomic content of Y = 10% was characterized by the highest saturation magnetization value and the lowest value of the D parameter, which may indicate the occurrence of antiferromagnetic ordering in certain regions of this alloy sample.
由于缺乏观察结构缺陷的直接方法，非晶合金的结构仍未得到令人满意的描述。非晶合金的磁化过程与其无序结构密切相关。磁化矢量对任何不均匀性的敏感性使得可以间接评估非晶铁磁合金的结构。在强磁场中，磁化过程涉及磁化矢量围绕点缺陷和线缺陷的旋转。基于对初始磁化曲线的分析，可以识别这些缺陷的类型。本文介绍了对以铁为基础的非晶合金在接近铁磁饱和区域和霍尔斯坦 - 普里马科夫顺磁过程中的磁化过程的研究结果。使用X射线衍射检查了一系列特殊生产材料的结构。在0至2 T的范围内测量了初始磁化曲线。所有测试合金的磁化过程都与线性缺陷的存在有关，满足关系D < 1。发现以牺牲铪为代价添加钇会阻碍磁化过程。原子含量为Y = 10%的合金具有最高的饱和磁化值和最低的D参数值，这可能表明在该合金样品的某些区域发生了反铁磁有序。
