Double coating protection of Nd-Fe-B magnets: Intergranular phosphating treatment and copper plating

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	Double coating protection of Nd-Fe-B magnets: Intergranular phosphating treatment and copper plating
	Zheng, Jingwu ; Chen, Haibo ; Qiao, Liang ; Lin, Min ; Jiang, Liqiang ; Che, Shenglei ; Hu, Yangwu
刊名	JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
	2014
卷号	371 页码:1
中文摘要	In this work, a double coating protection technique of phosphating treatment and copper plating was made to improve the corrosion resistance of sintered Nd-Fe-B magnets. In other words, the intergranular region of sintered Nd-Fe-B is allowed to generate passive phosphate conversion coating through phosphating treatment, followed by the copper coating on the surface of sintered Nd-Fe-B. The morphology and corrosion resistance of the phosphated sintered Nd-Fe-B were observed using SEM and electrochemical method respectively. The phosphate conversion coating was formed more preferably on the intergranular region of sintered Nd-Fe-B than on the main crystal region; just after a short time of phosphating treatment, the intergranular region of sintered Nd-Fe-B has been covered by the phosphate conversion coating and the corrosion resistance is significantly improved. With the synergistic protection of the intergranular phosphorization and the followed copper electrodeposition, the corrosion resistance of the sintered Nd-Fe-B is significantly better than that with a single phosphate film or single plating protection. (C) 2014 Elsevier B.V. All rights reserved.
公开日期	2015-09-20
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/11677]
专题	宁波材料技术与工程研究所_2014专题
推荐引用方式 GB/T 7714	Zheng, Jingwu,Chen, Haibo,Qiao, Liang,et al. Double coating protection of Nd-Fe-B magnets: Intergranular phosphating treatment and copper plating[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2014,371:1.
APA	Zheng, Jingwu.,Chen, Haibo.,Qiao, Liang.,Lin, Min.,Jiang, Liqiang.,...&Hu, Yangwu.(2014).Double coating protection of Nd-Fe-B magnets: Intergranular phosphating treatment and copper plating.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,371,1.
MLA	Zheng, Jingwu,et al."Double coating protection of Nd-Fe-B magnets: Intergranular phosphating treatment and copper plating".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 371(2014):1.