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成形工艺对铁基软磁复合材料电磁性能的影响

李发长 李一 柳学全 贾成厂 李楠 李金普 霍静

粉末冶金技术2012,Vol.30Issue(6):415-419,5.
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

李发长 1李一 2柳学全 2贾成厂 1李楠 2李金普 2霍静2

作者信息

  • 1. 北京科技大学材料科学与工程学院,北京100083
  • 2. 钢铁研究总院,北京100081
  • 折叠

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)

粉末冶金技术

OA北大核心CSCDCSTPCD

1001-3784

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