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热爆反应在金刚石表面快速形成TiC涂层

史冬丽 马尧 李涛

史冬丽, 马尧, 李涛. 热爆反应在金刚石表面快速形成TiC涂层[J]. 金刚石与磨料磨具工程, 2024, 44(4): 463-469. doi: 10.13394/j.cnki.jgszz.2023.0170
引用本文: 史冬丽, 马尧, 李涛. 热爆反应在金刚石表面快速形成TiC涂层[J]. 金刚石与磨料磨具工程, 2024, 44(4): 463-469. doi: 10.13394/j.cnki.jgszz.2023.0170
SHI Dongli, MA Yao, LI Tao. Rapid formation of TiC coating on diamond surface through thermal explosion reaction[J]. Diamond & Abrasives Engineering, 2024, 44(4): 463-469. doi: 10.13394/j.cnki.jgszz.2023.0170
Citation: SHI Dongli, MA Yao, LI Tao. Rapid formation of TiC coating on diamond surface through thermal explosion reaction[J]. Diamond & Abrasives Engineering, 2024, 44(4): 463-469. doi: 10.13394/j.cnki.jgszz.2023.0170

热爆反应在金刚石表面快速形成TiC涂层

doi: 10.13394/j.cnki.jgszz.2023.0170
详细信息
    作者简介:

    史冬丽,女,1974年生,高级工程师。主要研究方向:超硬材料及制品。E-mail:shidongli@zzpolis.com

  • 中图分类号: TQ164

Rapid formation of TiC coating on diamond surface through thermal explosion reaction

  • 摘要:

    分别采用Ti/碳黑/diamond和Ti/碳黑/PTFE/diamond粉体为原料,通过热爆反应在金刚石颗粒表面形成以TiC为主的涂层,研究原料中金刚石含量及添加PTFE对金刚石表面TiC涂层的影响。结果表明:2种体系的原料热爆反应后基体的组成为TiC。Ti/碳黑/diamond体系中,当原料中金刚石质量分数为10%~30%时,反应后的金刚石表面均实现良好的TiC涂层涂覆。在Ti/碳黑/PTFE/diamond体系中,当原料中添加质量分数为3%的PTFE并减少原料中碳黑的质量分数时,可明显促进金刚石表面的TiC涂覆;且当原料中金刚石质量分数为80%~90%时,仍可使金刚石颗粒表面实现良好的TiC涂覆。

     

  • 图  1  Ti粉与碳黑粉末的微观形貌图

    Figure  1.  Microstructure of Ti powder and carbon black powder

    图  2  试样装样方式

    Figure  2.  Sample loading methods

    图  3  不同金刚石质量分数下分离出来的金刚石颗粒外观

    Figure  3.  Appearances of diamond particles separated under different diamond mass fractions

    图  4  反应后试样中分离出来的结合剂和金刚石XRD图谱

    Figure  4.  XRD patterns of binder and diamond separated from the sample after reaction

    图  5  金刚石质量分数为10%和30%时反应后分离出来的金刚石颗粒的SEM形貌和能谱图

    Figure  5.  SEM morphologies and EDS spectrum of diamond particles separated after reaction when the mass fraction of diamond is 10% and 30%

    图  6  不同金刚石质量分数下反应后金刚石颗粒的外观

    Figure  6.  Appearances of diamond particles after reaction under different diamond mass fractions

    图  7  热爆反应后试样中金刚石的XRD图谱

    Figure  7.  XRD patterns of diamond in samples after thermal explosion reaction

    图  8  金刚石质量分数为20%和40%时反应后分离出来的金刚石颗粒的SEM形貌

    Figure  8.  SEM morphologies of diamond particles separated after reaction when the mass fraction of diamond is 20% and 40%

    图  9  较低碳黑含量下得到的样品中分离出的金刚石颗粒外观

    Figure  9.  Appearances of diamond particles separated from samples obtained at lower carbon black content

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出版历程
  • 收稿日期:  2023-08-25
  • 修回日期:  2023-10-24
  • 录用日期:  2023-11-06
  • 网络出版日期:  2023-11-06
  • 刊出日期:  2024-08-20

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