Ni-γ-Fe2O3/SiO2复合镀层的制备工艺+文献综述
关键词：复合电镀，镀镍，二氧化硅/三氧化二铁
Preparation of Ni-γ-Fe2O3/SiO2 composite coating
In this experiment, use electrodeposition prepare the Ni - Fe2O3/SiO2 composite coating, according to research of the cathodic electrodeposition, current density, temperature, thickness, electromagnetic power and other process parameters such as the coating significantly deposition rate, by experiments were obtain optimal parameters: cathode bright nickel plating current density Jk = 3 A/dm2 cathode composite nickel-plated current density Jk = 4A/dm2, Fe2O3/SiO2 amount - 2ml, temperature T = 60○C, electromagnetic power I = 0.1A, layer thickness δ= 2200 nm, use electron microscopy images and spectroscopy analysis were obtain surface morphology of the coating structure and distribution of the particles, results showed that: Fe2O3/SiO2 particles are uniformly distributed in the composite coating, the coating surface is smooth, uniform microstructure dense, micro hardness is significantly improved compared with the pure nickel coating.
Key words: composite coating, nickel plating, silica iron oxide
目录
1 绪论 1
1.1 课题背景和意义 1
1.2 复合电镀技术 1
1.2.1 复合电镀技术简介 1
1.2.2 复合电镀技术特点 1
1.3 复合材料概述 3
1.3.1 复合材料的定义 3
1.3.2 磁性复合材料 3
1.3.3 磁性复合材料的分类 3
1.3.4 磁性复合材料的表面修饰效果 4
1.3.5 磁性复合材料的应用 4
1.4 化学镀镍研究历史与现状 4
1.5 化学镀镍原理 6
1.5.1 化学镀镍的分类 6
1.5.2 化学镀镍反应的特点 6
1.6 SiO2基磁性复合材料 7
1.6.1 溶胶-凝胶(sol-gel)工艺制备SiO2基磁性复合材料 7
1.6.2 SiO2基磁性复合材料的研究现状 8
1.7 本课题研究内容与要求 9
2 实验部分 10
2.1 主要材料，药品及仪器 10
2.1.1. 实验药品 10
2.1.2. 实验仪器与设备 10
2.2 实验步骤 11
2.2.1. 实验需要的溶液配制 11
2.2.2. 电镀方法 12
2.2.2.1确定光亮镀镍和复合镀镍电流密度(Jk) 12
2.2.2.2确定电磁铁强度(I) 14
2.2.2.3确定厚度(δ) 15
2.2.2.4确定加Fe2O3/SiO2 颗粒的量(n) 16
3 实验结果与分析 18
3.1确定光亮镀镍和复合镀镍电流密度(Jk) 18
3.2确定电磁铁强度(I) 21
3.3确定厚度(δ) 23
3.4 确定加Fe2O3/SiO2 颗粒量(n) 27
4 结论 29