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以硅橡胶为基体、非晶粉Fe73.5Cu1Nb3Si13.5B9为增强材料,制备了Fe73.5Cu1Nb3Si13.5B9/硅橡胶柔性压磁复合材料。利用CSS-3901D电子蠕变松弛试验机和力磁耦合加载试验机得到了该复合材料压缩性能、蠕变性能和磁感应强度的变化规律,分析了环境温度、白炭黑含量和热处理工艺等对材料力学性能和初始磁导率的影响。结果表明,气相白炭黑含量对该复合材料力学性能影响较大,而对非晶粉热处理工艺的影响较小;非晶粉的热处理可提高该复合材料的初始磁导率,降低磁阻抗效应。
The soft magnetic composite of Fe73.5Cu1Nb3Si13.5B9 / silicone rubber was prepared by using silicon rubber as matrix and amorphous powder Fe73.5Cu1Nb3Si13.5B9 as reinforcing material. The variation of compressive property, creep property and magnetic induction intensity of the composites were obtained by using CSS-3901D electronic creep relaxation tester and force-magnetic coupling loading tester. The effects of ambient temperature, silica content and heat treatment on the properties of the material Mechanical properties and initial permeability. The results show that the content of fumed silica has a great influence on the mechanical properties of the composites, but has little effect on the heat treatment of amorphous powders. The heat treatment of amorphous powders can improve the initial permeability of the composites and reduce the magnetoimpedance effect .