电沉积制备Fe基纳米非晶薄膜及其磁性研究

摘要铁基非晶软磁材料是当下非常热门的话题，它具有高磁导率，低矫顽力，低电损耗等特点，被广泛应用于生产实践当中。
    本论文中，作者用直流电沉积的方法探究了电流密度，pH值，NaH2PO2•H20浓度对电沉积实验结果的影响。通过XRD表征确定了制备出Fe-P非晶薄膜的制备条件。作者通过SEM和EDS表征镀膜表面形貌，分析元素成分及含量。最后通过PPMS测定样品的磁性性能，通过磁滞回线和饱和磁感应强度与温度曲线，分析了P含量对磁性性能的影响，得到了P含量与磁性性能之间的关系。
关键词纳米非晶磁性性能 Fe基非晶电沉积26064
毕业论文设计说明书外文摘要
Title    Study on the preparation of Fe based amorphous thin films   and magnetic properties by electrodeposition
Abstract
Fe-based amorphous soft magnetic material is a current topic. It has high magnetic permeability, low coercive force and low electricity consumption, and it is widely used in production.
In this thesis, the author applied the direct current deposition method to explore the influence of current density, pH, time and concentration of sodium phosphate on the result of the electrodepositio-n experiment. The preparation conditions of Fe-P amorphous thin film preparation were determined by the XRD characterization.
The author characterized element composition and corresponding content of coating film through the characterization of SEM and EDS. Finally, magnetic performance of the samples was determined through PPMS, analyzed the effect of P’s content on the magnetic properties by hysteresis loop, saturated magnetic induction intensity and temperature curve. It revealed that the percentage of P is lower, the magnetic performance is better, and when the proportion of P is 19.8%, the soft magnetic properties is the best.
Keywords: nano glass magnetic performance     Fe-based
           amorphous electrodeposition
目   次
1 绪论   1
1.1 非晶合金的研究历史及现状   1
1.2 非晶合金的特点   1
1.3 电沉积法制备非晶薄膜[4]   2
1.4 铁基非晶材料   3
1.5 纳米非晶   4
1.6 课题的意义及内容   4
2 电沉积制备FeP纳米非晶薄膜实验方法   6
2.1 实验材料和主要仪器设备   6
2.2 镀液的基本配方和主要成分的作用   6
2.3 电镀的基本工艺   7
2.4 Fe-P非晶薄膜性能测定   8
3 实验结果与分析   9
3.1 主要工艺参数对Fe-P非晶薄膜磁性性能的影响   9
3.1.1 镀液电流密度对非晶薄膜形成的影响   9
3.1.2 镀液pH值的影响   11
3.1.3 镀液NaH2PO2.H20浓度对P含量的影响   12
3.2 FeP纳米非晶薄膜的表征   14
3.3 FeP纳米非晶薄膜磁性性能测定   18
结论   21
致谢   22
参考文献23
1 绪论
从古至今，材料的发展从来未间断过。现在来看，材料种类越来越繁杂，各种新型材料层出不穷。非晶材料由于其短程有序，长程无序结构，使得其拥有一些如磁性，抗腐蚀性，强度高，高电阻，高磁导率等独特性能。同时，非晶材料制备的工艺简单，制备成本低廉，被广泛应用到生产实践当中，是材料界重点研究的方向。电沉积制备Fe基纳米非晶薄膜及其磁性研究:http://www.youerw.com/cailiao/lunwen_20107.html