黄世玲,张迎九,杨德林.金刚石化学镀镍的研究[J].表面技术,2015,44(6):65-69,81. HUANG Shi-ling,ZHANG Ying-jiu,YANG De-lin.Study of Electroless Plating Nickel on the Diamond[J].Surface Technology,2015,44(6):65-69,81 |
金刚石化学镀镍的研究 |
Study of Electroless Plating Nickel on the Diamond |
投稿时间:2015-01-22 修订日期:2015-06-20 |
DOI:10.16490/j.cnki.issn.1001-3660.2015.06.013 |
中文关键词: 化学镀镍 金刚石 镀覆时间 增重比 镀层形貌 |
英文关键词:electroless plating nickel diamond plating time gain ratio coating morphology |
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中文摘要: |
目的 增强金刚石与基体的结合强度。 方法 采用“除油—粗化—敏化活化—解胶”的方法对金刚石进行预处理,通过化学镀镍方法对金刚石进行表面改性,结合扫描电子显微镜及 X 射线能谱仪研究不同参数对化学镀镍层的影响。 结果 在粒度为 10 μm 左右的金刚石表面镀覆致密镍层的最佳工艺参数为:NiSO4·6H2O(主盐)25 g/ L,次亚磷酸钠 30 g/ L,乳酸 15 g/ L,乙酸钠 15 g/ L,稳定剂 20 mg/ L,光亮剂 1 g/ L,pH=5. 5,温度 85 ℃ 。 结论 次亚磷酸钠含量、硫脲含量、pH 值、温度对镀覆时间、金刚石增重比及镀层形貌有影响,以最佳工艺参数获得的金刚石镍镀层包覆完整均匀,质量较好。 |
英文摘要: |
Objective To enhance the bonding strength between the diamond and the substrate. Methods The diamond was pretreated with a method of " degreasing—roughening—sensitizing activation—glue", and then surface was modified by electroless nickel plating on the diamond. The influence of different parameters on chemical plated nickel layer was studied by scanning electron microscopy and energy dispersive X-ray. Results The optimum technical parameters of nickel layer on the diamond about 10 microns: NiSO4·6H2O (main salt) 25 g/ L, hypophosphite 30 g/ L, lactic acid 15 g/ L, sodium acetate 15 g/ L, the stabilizer 20 mg/ L, brightener 1 g/ L, pH=5. 5, temperature 85 ℃. Conclusion Hypophosphite content, thiourea content, pH, and temperature may affects the plating time, the diamond coating weight gain ratio and morphology of chemical nickel. The diamond was coated complete uniform with the optimal parameters. |
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