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Electrodeposition and Properties of Copper Coatings Modified by Carbon Nanomaterial Obtained From Secondary Raw Materials

机译:二次原料中碳纳米材料改性铜涂层电沉积及性能

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With the development of electroplating, composite coatings of CEP, which are deposited from electrolyte suspensions, are increasingly being used. Composite coatings are obtained in those cases when it is envisaged to modify the surface of metal products to give them new properties. Perspective dispersed material can be carbon particles, because of their large specific surface area, high porosity, and subminiature structure. The obtaining of such material is possible from cheap secondary raw materials (car tires, nutshells, sawdust, bamboo). The purpose of this work is to create a CEP-based on copper with a carbon-dispersed phase. For the experiment, we used a carbon material with a particle size 40 nm, obtained by us, by pyrolysis from secondary raw materials (used tires of machines). To study the effect of the dispersed phase on copper electrodeposition, the optimum conditions for obtaining the CEP Cu-C were determined. Morphology and coefficients of friction-sliding of coatings of copper and CEP are studied. Incorporating into the base metal matrix, the carbon particles, embedded in the deposit, determine its further growth. The change in the structure of the electrolytic deposit affects its functional properties. The test of the obtained samples showed that the best tribological properties were found in CEP Cu-C, where the concentration of carbon material was 15 g/L. For CEP Cu-C, the friction coefficient (f) decreases three times compared to copper deposit, and wear by 12 times. Probably this is due to the fact that the carbon material performs the function of dry lubrication due to its layered structure.
机译:随着电镀的电镀,越来越多地使用从电解质悬浮液沉积的CEP的复合涂层。在这些情况下设想改变金属产物表面以提供新性质的复合涂层。透视分散材料可以是碳颗粒,因为它们具有大的比表面积,高孔隙率和二亚基结构。获得廉价二次原料(汽车轮胎,坚果壳,锯末,竹子)可以获得这种材料。这项工作的目的是以碳分散相的基于CEP的铜。对于实验,我们使用由美国获得的粒径40nm的碳材料,通过来自二次原料的热解(使用的机器轮胎)。为了研究分散相对铜电沉积的影响,测定了获得CEP Cu-C的最佳条件。研究了铜和CEP涂层摩擦滑动的形态和系数。掺入底座金属基质中,嵌入在沉积物中的碳颗粒,确定其进一步的生长。电解液结构的变化会影响其功能性质。所得样品的试验表明,在CEP Cu-C中发现了最佳的摩擦学特性,其中碳材料的浓度为15g / l。对于CEP Cu-C,与铜沉积物相比,摩擦系数(F)降低了三次,并磨损12次。可能这是由于碳材料由于其层状结构而对干润滑的功能进行了函数。

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