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Nanostructured core-shell Ni deposition on SiC particles by alkaline electroless coating

机译：碱性化学镀在SiC颗粒上的纳米结构核壳Ni沉积

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摘要

In this study, core-shell nanostructured nickel formation on silicon carbide (SiC) ceramic powders was achieved through the electroless deposition method using alkaline solutions. To produce a nano core-shell Ni deposition on the SiC surfaces, process parameters such as pH values, the type of reducer material, deposition temperature, stirring rate and activation procedure among others were determined. Full coverage of core-shell nickel structures on SiC surfaces was achieved with a grain size of between 100 and 300 nm, which was approximately the same deposition thickness on the SiC surfaces. The surface morphology of the coated SiC particles showed a homogenous distribution of nanostructured nickel grains characterized by scanning electron microscopy and X-ray diffraction techniques. The nanostructures of the crystalline Ni coatings were observed to be attractive for achieving both good bonding and dense structure. The thin core shell-structure of Ni on the SiC surfaces was assessed as a beneficial reinforcement for possible metal matrix composite manufacturing.
机译：在这项研究中，通过使用碱性溶液的化学沉积方法，在碳化硅（SiC）陶瓷粉末上形成了核-壳纳米结构镍。为了在SiC表面上生成纳米核-壳Ni沉积，确定了工艺参数，例如pH值，还原剂材料的类型，沉积温度，搅拌速率和活化程序等。晶粒大小在100到300 nm之间，可以在SiC表面上完全覆盖核壳镍结构，这与在SiC表面上的沉积厚度大致相同。涂覆的SiC颗粒的表面形态显示出纳米结构镍晶粒的均匀分布，其特征在于扫描电子显微镜和X射线衍射技术。观察到结晶镍涂层的纳米结构对于实现良好的结合和致密的结构具有吸引力。 SiC表面上Ni的薄核壳结构被评估为可能的金属基复合材料制造的有益增强。

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  • 来源
    《Applied Surface Science》 |2011年第24期|p.10601-10606|共6页
  • 作者

    M. Uysal; R. Karslioglu; A. Alp; H. Akbulut;

  • 作者单位

    Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya, Turkey;

    Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya, Turkey;

    Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya, Turkey;

    Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya, Turkey;

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  • 正文语种 eng
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  • 关键词

    electroless ni coating core-shell structure sic powder;

    机译：化学镀镍核壳结构粉末;

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