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真空微蒸发镀铬金刚石的制备与性能表征

张向红 王艳辉 臧建兵 张金辉

张向红, 王艳辉, 臧建兵, 张金辉. 真空微蒸发镀铬金刚石的制备与性能表征[J]. 金刚石与磨料磨具工程, 2022, 42(1): 56-60. doi: 10.13394/j.cnki.jgszz.2021.0100
引用本文: 张向红, 王艳辉, 臧建兵, 张金辉. 真空微蒸发镀铬金刚石的制备与性能表征[J]. 金刚石与磨料磨具工程, 2022, 42(1): 56-60. doi: 10.13394/j.cnki.jgszz.2021.0100
ZHANG Xianghong, WANG Yanhui, ZANG Jianbing, ZHANG Jinhui. Preparing and characterizing Cr-coated diamond through one pot reaction in a vacuum reactor[J]. Diamond &Abrasives Engineering, 2022, 42(1): 56-60. doi: 10.13394/j.cnki.jgszz.2021.0100
Citation: ZHANG Xianghong, WANG Yanhui, ZANG Jianbing, ZHANG Jinhui. Preparing and characterizing Cr-coated diamond through one pot reaction in a vacuum reactor[J]. Diamond &Abrasives Engineering, 2022, 42(1): 56-60. doi: 10.13394/j.cnki.jgszz.2021.0100

真空微蒸发镀铬金刚石的制备与性能表征

doi: 10.13394/j.cnki.jgszz.2021.0100
基金项目: 河北省科技计划——中央引导地方科技发展资金项目(NO.216Z1102G)。
详细信息
    通讯作者:

    臧建兵,女,1968年生,教授、博士生导师。E-mail: diamondzjb@163.com

  • 中图分类号: TQ164

Preparing and characterizing Cr-coated diamond through one pot reaction in a vacuum reactor

  • 摘要: 采用真空微蒸发镀覆工艺制备不同镀层厚度的镀铬金刚石,对铬镀层的物相组成和镀层厚度进行分析和表征。结果表明:改变镀覆温度和保温时间,可控制镀铬金刚石的镀层厚度。镀层的物相组成可通过镀覆质量增加来控制:质量增加10%的铬镀金刚石,其镀层只出现Cr3C2相;质量增加为20%时,有少量Cr7C3出现。从金刚石基体到铬镀层,镀层结构由低Cr比例的碳化物向高Cr比例的碳化物逐渐过渡,即为Cr3C2/Cr7C3;在金刚石尺寸确定的情况下,使用理论分析镀层厚度与镀覆质量增加的关系,如质量增加10%和65%的金刚石对应的铬镀层厚度分别为0.77 μm和4.76 μm,此结果与试验观察相吻合。

     

  • 图  1  Cr镀层真空微蒸发镀工艺

    Figure  1.  Cr deposition process through one pot reaction in a vacuum reactor

    图  2  不同镀覆工艺条件下的增加不同质量的镀Cr金刚石的XRD图谱

    Figure  2.  XRD patterns of Cr-coated diamond particles with different weight gains

    (a) 10%; (b) 20%; (c) 30%; (d) 65%

    图  3  Cr镀层与金刚石基体间的扩散反应机理

    Figure  3.  Schematic of diffusion reaction of Cr coating and diamond grit

    图  4  金刚石镀层厚度计算示意图

    Figure  4.  Schematic for calcalating coating thickness

    图  5  铬镀层厚度与其质量增加的关系

    Figure  5.  Relationship between coating weight gain and coating thickness

    图  6  Cr镀层镀层厚度的SEM图

    Figure  6.  SEM of Cr-coated diamonds for coating thickness

    表  1  不同镀覆工艺条件的镀Cr金刚石

    Table  1.   Cr-coated diamond prepared under different parameters

    序号镀覆温度 θ / ℃镀覆时间 t / min质量增加 w / %
    18502010
    285024020
    390012030
    495024065
    下载: 导出CSV

    表  2  不同质量增加对应的镀层厚度

    Table  2.   Coating thickness with different coating gains

    序号质量增加$ \Delta {m_{{\text{Coat}}}} $ / %镀层厚度 δ / μm
    1100.77
    2201.58
    3302.29
    4654.76
    下载: 导出CSV
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出版历程
  • 录用日期:  2021-12-15
  • 收稿日期:  2021-09-24
  • 修回日期:  2022-01-26
  • 网络出版日期:  2022-03-17

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