低温熔盐电化学制备CoNiFe磁性合金膜  

Preparation of Magnetic Alloy Film via Low Temperature Molten Salt Electrochemistry

作　　者：刘文峰[1] 梁凯峰[1] 李益[1] 张进修[1] 熊小敏[1] 

机构地区：[1]中山大学,光电材料与技术国家重点实验室,广州510275

出　　处：《金属功能材料》2009年第2期14-16,共3页Metallic Functional Materials

基　　金：广东省科技计划(项目号:2005300004202109)

摘　　要：本文从尿素-NaBr-KBr-甲酰胺熔盐体系中,采用恒电位(-0.7V)电沉积得到了CoNiFe合金膜。通过X射线衍射仪(XRD)、X射线能谱仪(EDXS)和振动样品磁强计(VSM)研究热处理对合金膜的晶体结构和磁性的影响。结果表明,热处理不但使合金膜由面心立方(fcc)和六角密堆(hcp)混合晶体组成的薄膜转变成由单一相面心立方(fcc)组成的薄膜,而且有助于改善CoNiFe合金薄膜的软磁性能,使之达到应用水平。Soft magnetic CoNiFe alloy films were successfully synthesized by potentiostatic electrodeposition at -0.7 V in urea NaB-KBr formamide molten salt. The effect of heat treatment on the structure and soft magnetic properties were studied by using X-ray diffraction（XRD）, energy dispersion of X-ray spectroscopy（EDXS） and vibrating sample magnetometer（VSM）. The results show that heat treatment makes the deposited CoNiFe alloy film trans- form from two phases of face-centered cubic（fcc） and hexagonal close packed （hcp） into a single phase of fcc and contributes to improvement of soft magnetic properties suitable for practical use.

关 键 词：低温熔盐 电沉积 软磁合金膜 热处理 

分 类 号：TB383.2[一般工业技术—材料科学与工程]