电沉积制备Ni-W-Cu新型超疏水镀层及其电沉积机理研究

项目名称： 电沉积制备Ni-W-Cu新型超疏水镀层及其电沉积机理研究

项目编号： No.51504104

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 矿业工程

项目作者： 周琼宇

作者单位： 江西理工大学

项目金额： 20万元

中文摘要： 超疏水材料由于具有良好的防污、耐大气腐蚀性能而受到广泛的关注。常规的“两步法”制备工艺使用有机物降低表面能，有机物稳定性差成为制约超疏水表面在工程中应用的主要原因。本项目对开发无需有机物修饰的Ni-W-Cu新型超疏水镀层展开了研究：利用正交系统实验结合BP神经网络探索合适的电沉积工艺；通过分析镀层成分、微观结构、晶体取向研究Ni-W-Cu镀层的疏水机制；在人工雾箱中模拟雾霾环境，研究Ni-W-Cu镀层的污损规律，并结合污损过程中镀层表面腐蚀产物的分析，建立Ni-W-Cu镀层在雾霾环境中的腐蚀模型；引入半导体电化学的研究方法对电沉积W这一特殊的阴极界面体系展开分析，结合阴极物相和镀液成分变化，揭示Cu对W氧化物膜层以及Ni诱导W析出过程的影响机制；综合Ni-W-Cu镀层疏水机制和电沉积机理的研究结果，提出相应措施优化沉积工艺，实现对疏水性能优异、结构稳定的新型Ni-W-Cu镀层的可控制备。

中文关键词： 电沉积；W合金；半导体电化学；超疏水镀层；腐蚀

英文摘要： Super-hydrophobic materials have attracted great interest because of their potential use in a variety of applications, such as self-cleaning, anti-polluting and anti-atmosphere corrosion. The super-hydrophobic surfaces are usually fabricated by the two-step approache，including chemically modifying the structured surfaces by organics. Poor stability of organic is the major reason of super-hydrophobic surface unsuitable for engineering application. In this project, Ni-W-Cu coating with inborn superhydrophobic effect was studied. Electrodeposition process parameters are optimized by orthogonal experiment and BP neural network system; Hydrophobic mechanism are analyzed by composition, microstructure and crystal orientation of the coating. Anti-polluting property is investigated in the artificial haze and corrosion mechanism in haze is established. Base on the special cathode interface system of electrodeposition W alloy, electrodeposition mechanism is researched by semiconductor electrochemistry technology in conjunction with the variation of cathode material and plating solution composition. By means of the above researches, a novel Ni-W-Cu coating, which have excellent performance of hydrophobic and thermal stability combine with good hardness and wear resistance, may be obtained by electrodeposition.

英文关键词： electrodeposition;W alloy;semiconductor electrochemistry;super-hydrophobic coating;corrosion