Hydroxyethylidene-1,1-diphosphonic acid surface treatment as insulation technology for iron based soft magnetic composites
Hydroxyethylidene-1,1-diphosphonic acid surface treatment as insulation technology for iron based soft magnetic composites
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DOI：
10.1016/j.jmmm.2023.171592
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发表时间：
2023-12
影响因子：
2.7
通讯作者：
Gongyu Zhang;Zaixin Wei;Hengtong Wang;Xiaoting Song;Xiangru Qi;Yao Liu
中科院分区：
文献类型：
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作者：
Gongyu Zhang;Zaixin Wei;Hengtong Wang;Xiaoting Song;Xiangru Qi;Yao Liu
本研究采用HEDP表面处理作为绝缘涂层技术来制备铁基软磁复合材料。涂层主要包含金属螯合物，以及少量的铁氧化物和氢氧化物。研究了处理时间对软磁复合材料显微组织、耐蚀性能和电磁性能的影响。研究结果表明，经过HEDP处理的铁粉的耐腐蚀性能显着增强，并且经过90分钟处理的铁粉表现出最均匀和致密的涂层，产生最佳的磁性能。值得注意的是，经过 90 分钟处理后，样品的损失记录为 360.6 mW/g，表明与未处理的样品相比，显着减少了 66.88%。这项研究为工业规模生产具有卓越磁特性的软磁复合材料提供了一种简单且经济高效的方法。
In this study, we employed HEDP surface treatment as an insulation coating technology for the preparation of iron-based soft magnetic composites. The coating layer primarily comprises metal chelate, alongside minor quantities of iron oxides and hydroxides. The influence of treatment time on the microstructure, corrosion resistance and electromagnetic properties of the soft magnetic composites is investigated. The findings indicate a substantial enhancement in the corrosion resistance of iron powder treated with HEDP, and the iron powder subjected to a 90-minute treatment exhibited the most uniform and dense coating, yielding optimal magnetic properties. Notably, the sample's loss after a 90-minute treatment is recorded at 360.6 mW/g, indicating a remarkable reduction of 66.88 % when compared to the untreated sample. This research offers a straightforward and cost-effective approach for the industrial-scale production of soft magnetic composite materials with exceptional magnetic characteristics.