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The effect of diamond particle size on the wear resistance of silver/diamond electroplated dispersion coatings

机译:金刚石粒度对银/金刚石电镀分散涂层耐磨性的影响

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The goal of this work was to reveal the influence of the diamond particle size on the wear resistance of silver/diamond electroplated dispersion coatings. For this purpose, a series of samples was realized by the use of a silver cyanide electrolyte containing different sized micro diamond particles. For all galvanic deposition processes, the authors applied identical plating parameters (plating voltage, current, temperature and particle concentration in the plating bath), in order to obtain coatings having a thickness between 9 and 15 μm. Diamond micro particles with different grain size (1, 0.25 and 0.1 (am) were co-deposited together with the silver matrix on copper substrates. The characterization of the coatings structure was carried out by scanning electron microscopy (SEM) and the sliding wear resistance of the silver base composite layers was determined using a pin-on-disk wear tester. The results of the above mentioned investigations showed that the layer containing the smallest diamond particles provided the highest wear resistance.
机译:这项工作的目的是揭示金刚石粒径对银/金刚石电镀分散涂层耐磨性的影响。为此,通过使用含有不同尺寸的微金刚石颗粒的氰化银电解质实现了一系列样品。对于所有电镀沉积工艺,作者均采用相同的电镀参数(电镀液中的电镀电压,电流,温度和颗粒浓度),以获得厚度在9至15μm之间的涂层。将不同粒径(1、0.25和0.1(am)的金刚石微粒)与银基体共同沉积在铜基体上,通过扫描电子显微镜(SEM)和滑动耐磨性对涂层结构进行表征使用针盘式磨损测试仪确定银基复合材料层的厚度,上述研究结果表明,包含最小金刚石颗粒的层具有最高的耐磨性。

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