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施镀时间和浓度对碳纳米管镀Ni层厚度的影响

, PP. 116-120

Keywords: 化学镀,碳纳米管,施镀时间,浓度,镀层厚度

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Abstract:

为降低碳纳米管的表面活化能,改善碳纳米管与金属基体的相容性,采用化学镀的方法,在碳纳米管表面镀覆一层金属Ni。研究了施镀时间和镀液浓度对碳纳米管表面镀Ni层厚度的影响。结果表明:随着施镀时间延长,Ni沉积颗粒变大导致镀Ni层变厚;镀液浓度增加,碳纳米管表面沉积的Ni颗粒增多,镀Ni层逐渐致密。本实验工艺条件下,镀液浓度为0.08mol/L,反应时间为30min时,可以在碳纳米管表面镀覆一层界面结合良好且致密的Ni层,其厚度约为10nm。热处理能有效缓解镀Ni层应力,改善界面结合。

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