粉末冶金技术2012,Vol.30Issue(6):415-419,5.
成形工艺对铁基软磁复合材料电磁性能的影响
Effect of forming process on the magnetic and electrical properties of ferrous soft magnetic composites
摘要
Abstract
Soft magnetic insulated powders were prepared by phosphorization. Soft magnetic composites were fabricated by the method of powder metallurgy. The influences of lubricant additions and compaction pressure on the magnetic and electrical properties of the composites were studied. The results show that the phosphating process gives rise to a large coverage of the iron powders surface by the iron phosphate coating. Increasing the lubricant content results in lower green density of the composites. The sample containing 0. 20wt% PSI000b super lubricant shows the highest density, permeability and saturation magnetization, also the lowest coercive force and hysteresis loss. With increase in the compaction pressure, density and permeability of the magnetic core increase, while resistivity decreases and magnetic loss increases at medium and high frequencies.关键词
软磁复合材料/成形工艺/软磁性能Key words
soft magnetic composites/ forming process/ soft magnetic properties引用本文复制引用
李发长,李一,柳学全,贾成厂,李楠,李金普,霍静..成形工艺对铁基软磁复合材料电磁性能的影响[J].粉末冶金技术,2012,30(6):415-419,5.基金项目
国家科技支撑计划资助项目(2009BAE74B03) (2009BAE74B03)