阴极等离子体电解沉积工艺参数对放电与沉积过程的影响

发布时间：2018-01-25 05:44

本文关键词： 阴极等离子体电解沉积液相放电初始放电电压　出处：《中国表面工程》2016年01期 　论文类型：期刊论文

【摘要】：为进一步认识和控制阴极等离子体电解沉积过程,研究了工艺条件对锌沉积时放电和沉积过程的影响,用扫描电镜和金相显微镜分别观察沉积层的表面和截面形貌,用能谱仪和X射线衍射仪进行沉积层元素和物相分析。结果表明,极间电压增大到约200V以上的某一电压值时阴极上发生等离子放电,初始放电电压与电解槽中的溶剂种类、氯化钠添加量有关,随乙醇和氯化钠添加量的增大而降低。要在阴极上实现锌的沉积,就应控制工艺条件使初始放电电压尽量低,且极间电压宜维持在初始放电电压以上10~20V。采用水和乙醇混合作溶剂比只用水作溶剂容易实现稳定的阴极沉积,沉积层厚度明显大,但沉积物表面的颗粒较粗大,致密性要差。
[Abstract]:In order to further understand and control the process of cathodic plasma electrodeposition, the effect of process conditions on the discharge and deposition process of zinc deposition was studied. The surface and cross section morphology of the deposit were observed by scanning electron microscope (SEM) and metallography respectively. The elements and phases of the deposit were analyzed by energy dispersive spectroscopy (EDS) and X-ray diffractometer (XRD). Plasma discharge occurs on the cathode when the voltage between electrodes increases to about 200V. The initial discharge voltage is related to the type of solvent in the electrolyzer and the amount of sodium chloride. In order to achieve zinc deposition on the cathode, the initial discharge voltage should be kept as low as possible by controlling the process conditions. And the voltage between electrodes should be kept above the initial discharge voltage of 10 ~ 20V. It is easier to achieve stable cathodic deposition by using water and ethanol as the mixed solvent than only using water as the solvent, and the thickness of the deposited layer is obviously larger. However, the grain size on the surface of the sediment is thicker and the density is poor.
【作者单位】：淮海工学院机械工程学院;中国矿业大学机电工程学院;江苏省海洋资源开发研究院绿色过程与工程研发中心;
【基金】：国家自然科学基金(51105162) 江苏省博士后研究基金(1302084C)
【分类号】：TG174.44
【正文快照】： 引文格式:杨建明,陈田,陈劲松,等.阴极等离子体电解沉积工艺参数对放电与沉积过程的影响[J].中国表面工程,2016,29(1):73-79.YANG J M,CHEN T,CHEN J S,et al.Effects of parameters of cathodic plasma electrolytic deposition on theprocess of discharge and deposition[J

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