几种非晶态合金的交流磁性研究

本文研究了四种非晶态合金的磁性参数随频率ｆ及磁感应强度Ｂ的变化规律，得出非晶态合金的磁化过程符合晶态金属磁畴理论的技术磁化规律；在中强场内交流损耗符合晶态金属磁损耗分离关系，找出了Ｐ／ｆ与频率ｆ关系曲线包含两条直线规律，求得直线转折所对应的频率约为２０ｋＨｚ；不同铁磁性非晶态合金在最大磁导率μｍａｘ值相差较大的情况下，磁损耗分离满足相同的规律。

Study on the A. C. Magnetic Properties of Several Amorphous Alloys

we have studied the magnetic parameters dependence on the frequency fand the magnetization field B for four amorphous alloys. The experimental results showthat the magnetization process of amorphous alloys is consistent with the technical mag-netization rule of metal magnetic domain theory. For the middle field, the A. C. magnticlosses can be explained by the separation relation for the crystalline magnetic losses.Thecurve for P/f and frequency f contains two straight lines separated at 20 kHz for theseamorphous alloys. The laws are obeyed by different amorphous alloys although theirmaximum permeability are quite different.