铁镍合金薄膜的电沉积制备及其结构与性能分析

发布时间：2018-04-22 23:18

本文选题：电沉积 + 铁镍合金　；参考：《北京工业大学》2015年硕士论文

【摘要】：铁镍合金具有优异的软磁特性和力学特性,因此在低频磁场屏蔽领域得到了广泛的应用,并且随着设备轻量化、微型化的发展和需要,磁场屏蔽材料也朝着轻、薄的薄膜材料发展。铁镍合金磁屏蔽薄膜的制备方法主要有磁控溅射法和电沉积法,其中电沉积制备铁镍合金薄膜是一种便宜且实用的方法。本论文研究目标是采用电沉积技术制备可剥离的铁镍合金薄膜,取得了以下研究成果:(1)采用电化学方法对铁镍合金电沉积过程进行了研究,得到了不同工艺参数对铁镍合金电沉积过程极化行为的影响,为工艺参数的设计提供了理论依据和研究方向。(2)系统研究了镀液中铁镍离子浓度比、pH、温度、电流密度等工艺条件对镀层中铁含量的影响,并对镀层的物相结构、表面形貌、内应力、磁性能及屏蔽效能等进行了表征,优化出了最优工艺参数,可以得到性能优异、可剥离的铁镍合金薄膜。(3)研究了不同的阳极体系对镀液、镀层中成分变化的影响,从而得到了最适合的阳极体系,保持了镀液中被镀金属离子浓度的动态平衡;对影响电镀液稳定性的其他因素,如镀液pH值的变化、添加剂的消耗等进行了研究。提出了维持铁镍合金电镀液稳定性的方案,为进行连续电沉积铁镍合金薄膜提供了实验依据。(4)根据制备小片铁镍合金薄膜的方法及规律设计了一种电沉积制备铁镍合金连续薄膜的装置,制备出了连续的铁镍合金薄膜。
[Abstract]:Due to its excellent soft magnetic properties and mechanical properties, Fe-Ni alloys have been widely used in the field of low frequency magnetic field shielding, and with the development and need of lightweight and miniaturized equipment, magnetic shielding materials are becoming lighter. Thin film materials developed. The preparation methods of Fe-Ni alloy magnetic shielding films mainly include magnetron sputtering and electrodeposition. Electrodeposition is a cheap and practical method for the preparation of Fe-Ni alloy films. The purpose of this thesis is to prepare the iron-nickel alloy thin films by electrodeposition. The following research results are obtained: (1) Electrochemical method is used to study the electrodeposition process of Fe-Ni alloy. The effects of different process parameters on the polarization behavior of Fe-Ni alloy electrodeposition were obtained, which provided the theoretical basis and research direction for the design of the process parameters. The effect of current density and other technological conditions on the iron content in the coating was studied. The phase structure, surface morphology, internal stress, magnetic properties and shielding efficiency of the coating were characterized. The optimum technological parameters were optimized and the excellent properties were obtained. The effect of different anodic systems on the composition change of plating solution and coating was studied. The most suitable anodic system was obtained and the dynamic balance of the concentration of metal ions in the plating bath was maintained. Other factors affecting the stability of electroplating bath, such as the change of pH value, the consumption of additives and so on, were studied. The scheme of maintaining the stability of Fe-Ni alloy electroplating solution is put forward. This paper provides experimental basis for continuous electrodeposition of iron-nickel alloy thin films. According to the methods and rules of preparing small iron-nickel alloy films, a device for electrodeposition of Fe-Ni alloy continuous films is designed, and continuous Fe-Ni alloy films are prepared.
【学位授予单位】：北京工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TB383.2

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