Shang Yajing, Luo Fan, Duan Zhongxia
Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China.
Materials (Basel). 2022 Dec 26;16(1):209. doi: 10.3390/ma16010209.
MnZn ferrite homogeneous fibers were synthesized via a simple solvothermal method and they were used as a reinforcing phase to prepare homogeneous-fiber-reinforced MnZn ferrite materials. The effects of MnZn ferrite homogeneous fibers (0 wt% to 4 wt%) doping on the microstructure, magnetic, and mechanical properties of MnZn ferrite materials were studied systematically. The results showed that MnZn ferrite homogeneous fibers exhibited high purity, good crystallinity, and smooth 1D fibrous structures, which were homogeneous with MnZn ferrite materials. Simultaneously, a certain content of MnZn ferrite homogeneous fibers helped MnZn ferrite materials exhibit more uniform and compact crystal structures, less porosity, and fewer grain boundaries. In addition, the homogeneous-fiber-reinforced MnZn ferrite materials possessed superior magnetic and mechanical properties such as higher effective permeability, lower magnetic loss, and higher Vickers hardness compared to ordinary MnZn ferrite materials. In addition, the magnetic and mechanical properties of homogeneous-fiber-reinforced MnZn ferrite materials first increased and then gradually decreased as the homogeneous fiber content increased from 0 wt% to 4 wt%. The best magnetic and mechanical properties of materials were obtained as the fiber content was about 2 wt%.
通过一种简单的溶剂热法合成了锰锌铁氧体均质纤维，并将其用作增强相来制备均质纤维增强锰锌铁氧体材料。系统研究了锰锌铁氧体均质纤维（0 wt%至4 wt%）掺杂对锰锌铁氧体材料微观结构、磁性和力学性能的影响。结果表明，锰锌铁氧体均质纤维具有高纯度、良好的结晶度和光滑的一维纤维结构，与锰锌铁氧体材料均匀一致。同时，一定含量的锰锌铁氧体均质纤维有助于锰锌铁氧体材料呈现出更均匀致密的晶体结构、更少的孔隙率和更少的晶界。此外，与普通锰锌铁氧体材料相比，均质纤维增强锰锌铁氧体材料具有优异的磁性和力学性能，如更高的有效磁导率、更低的磁损耗和更高的维氏硬度。此外，随着均质纤维含量从0 wt%增加到4 wt%，均质纤维增强锰锌铁氧体材料的磁性和力学性能先增加后逐渐降低。当纤维含量约为2 wt%时，材料获得了最佳的磁性和力学性能。
