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Influence of crystalline diamond nanoparticles on diamond-like carbon friction behavior

机译：结晶金刚石纳米颗粒对类金刚石碳摩擦行为的影响

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摘要

Crystalline diamond (CD) particles have been incorporated in diamond-like carbon (DLC) film structure in order to improve DLC electrochemical corrosion resistance. This paper shows the investigation of CD-DLC friction behavior according to the CD average sizes and concentration. The films were growth over 304 stainless steel using plasma enhanced chemical vapor deposition. The response surface methodology was used to develop a mathematical modeling of friction for these films, using the experimental results, in order to identify parameters that control friction and construct tribological maps according to the CD average sizes. The presence of bigger CD particles (250 and 500 nm) increased the film roughness. Films with CD particles of 4 nm presented the most homogeneous friction map, with minor variation in friction coefficient with the increase/decrease of load and sliding speed even when the CD concentration increase. This result suggests that in CD-DLC films containing CD particles of 4nm average size, the nanoparticles are better incorporated in DLC structure due to its average size (4nm) that is near than DLC grain size and could occupy the nanospaces between DLC grains.
机译：晶状金刚石（CD）颗粒已掺入类金刚石碳（DLC）膜结构中，以提高DLC的耐电化学腐蚀性能。本文显示了根据CD平均尺寸和浓度对CD-DLC摩擦行为的研究。使用等离子增强化学气相沉积法在304不锈钢上生长薄膜。使用实验结果，使用响应表面方法为这些薄膜建立了摩擦数学模型，以便确定控制摩擦的参数并根据CD的平均尺寸构建摩擦学图。较大的CD颗粒（250和500 nm）的存在增加了膜的粗糙度。具有4 nm的CD颗粒的薄膜呈现出最均匀的摩擦图，即使CD浓度增加，摩擦系数随负载和滑动速度的增加/减少而变化很小。该结果表明，在包含平均尺寸为4nm的CD颗粒的CD-DLC膜中，由于纳米颗粒的平均尺寸（4nm）比DLC晶粒尺寸小，并且可以占据DLC晶粒之间的纳米空间，因此纳米颗粒可以更好地掺入DLC结构中。

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  • 来源
    《Applied Surface Science》 |2011年第17期|p.7387-7393|共7页
  • 作者

    P.A.Radi; F.R.Marciano; D.A.Lima-Oliveira; LV.Santos; E.J.Corat; V.J.Trava-Airoldi;

  • 作者单位

    Institute National de Pesquisas Espaciais (INPE), Laboratorio Associate de Sensores e Materials (LAS), Av. Dos Astronautas 1758, Sao Jose dos Campos, 12227-010, SP, Brazil;

    Instituto Tecnologico de Aeronautica (ITA), Pea. Marechal Eduardo Comes, 50-Sao Jose dos Campos, 12228-900, SP, Brazil,Laboratorio de Nanotecnologia Biomedica (NanoBio), Instituto de Pesquisas e Desenvolvimento (IPζD), Universidade do Vale do Paraiba (Univap),Av.Shishima Hifumi 2911,Sao Jose dos Campos,12244-000, SP, Brazil;

    Institute National de Pesquisas Espaciais (INPE), Laboratorio Associate de Sensores e Materials (LAS), Av. Dos Astronautas 1758, Sao Jose dos Campos, 12227-010, SP, Brazil;

    Instituto Tecnologico de Aeronautica (ITA), Pea. Marechal Eduardo Comes, 50-Sao Jose dos Campos, 12228-900, SP, Brazil,Laboratorio de Pesquisa em Nanotecnologia e Processos a Plasmas-NanoTecPlasma, Instituto de Pesquisas e Desenvolvimento (IPζD),Universidade do Vale do Paraiba (Univap), Av. Shishima Hifumi 2911, Sao Jose dos Campos, 12244-000, SP,Brazil;

    Institute National de Pesquisas Espaciais (INPE), Laboratorio Associate de Sensores e Materials (LAS), Av. Dos Astronautas 1758, Sao Jose dos Campos, 12227-010, SP, Brazil,Instituto Tecnologico de Aeronautica (ITA), Pea. Marechal Eduardo Comes, 50-Sao Jose dos Campos, 12228-900, SP, Brazil;

    Institute National de Pesquisas Espaciais (INPE), Laboratorio Associate de Sensores e Materials (LAS), Av. Dos Astronautas 1758, Sao Jose dos Campos, 12227-010, SP, Brazil,Instituto Tecnologico de Aeronautica (ITA), Pea. Marechal Eduardo Comes, 50-Sao Jose dos Campos, 12228-900, SP, Brazil;

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  • 正文语种 eng
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  • 关键词

    diamond-like carbon; crystalline diamond particles; friction behavior;

    机译：类金刚石碳;结晶金刚石颗粒;摩擦行为;

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