摘要
采用真空电弧离子镀技术,在316L医用不锈钢基片上沉积Fe/Pt和Pt/Fe/Pt多层膜。Fe/Pt和Pt/Fe/Pt薄膜在初始沉积态是无序的fcc结构,经扩散热处理,发生相变,转变为fct有序结构的L10型Fe/Pt和Pt/Fe/Pt薄膜。经SEM、XRD分析和磁性测量表明:316L医用不锈钢表面可沉积均匀致密的Fe/Pt和Pt/Fe/Pt薄膜,经扩散热处理后,Fe-Pt形成了明显的扩散层,fcc结构的Fe/Pt和Pt/Fe/Pt薄膜部分转变为了fct结构,通过硬磁fct相与软磁fcc相的交换耦合作用,剩磁有了很大的提高。
Fe/Pt and Pt/Fe/Pt thin films have been deposited directly on the surface of medical 316L stainless steel by vacuum arc deposition. The Fe/Pd and Pt/Fe/Pt thin films are disorder fcc structure in deposit state. After diffusion heat treatments, the disorder fcc structure turns into an ordered L10 phase＇s fct structure. The Fe/Pt and Pt/Fe/Pt thin films are investigated by scanning electron microscopy （SEM）, X-ray diffraction （XRD） and magnetic measurements. The results show that homogenous and dense Fe/Pt and Pt/Fe/Pt thin films are directly deposited on the surface of medical 316L stainless steel, an apparent Fe-Pt diffusion layer is formed after the diffusion heat treatments, and the Fe/Pt and Pt/Fe/Pt thin films partly turn into ordered L10 phase＇s fct structure. Their remnant magnetisms increase apparently by the interaction of fct phase and fcc phase.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2007年第11期1960-1963,共4页
Rare Metal Materials and Engineering
基金
国家自然基金资助项目(30470486/C010515)
