NdFeB磁性材料表面化学镀Ni-W-P合金研究  

Electroless Ni-W-P plating alloy on the surface of the NdFeB permanent magnets

作　　者：刘炜[1] 王憨鹰[1] 

机构地区：[1]榆林学院建筑工程系,陕西榆林719000

出　　处：《兵器材料科学与工程》2011年第2期35-37,共3页Ordnance Material Science and Engineering

基　　金：榆林学院科学研究重点项目(11YK19)

摘　　要：通过不同的化学镀工艺配方,在NdFeB永磁体表面获得4种不同W含量的化学镀Ni-W-P三元合金镀层。利用SEM对镀层的微观组织观察与分析表明:镀层表面形貌呈致密胞状结构,Ni、W、P元素分布均匀。进一步的衍射分析和硬度测试表明:随镀层中W和P元素含量的不同,镀层结构分别由纳米晶态、混晶态和非晶态组成,镀层的硬度随镀层结构从非晶态-混晶态-晶态的转变而增加。Four ternary Ni-W-P alloy coatings on the surface of the Nd-Fe-B permanent magnet with different W contents were obtained by four different electroless Ni-W-P plating bath.The SEM observation and analysis of the coatings indicate that the morphology appeares closely nodules structure,and Ni,Cu,P elements distribute homogeneously in the coatings.The X-ray diffraction analysis and the hardness measurement suggest that with the changing of W and P content,the coating structures are crystalline,mixed crystalline and amorphous respectively.And the hardness of coatings also increases with its structure changing from amorphous into mixed crystalline and crystalline.

关 键 词：化学镀 NI-W-P合金 NDFEB 微观组织 硬度 

分 类 号：TQ153.12[化学工程—电化学工业]