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结合剂比例和cBN粒度配比对PcBN复合材料微观结构和性能的影响

邹芹 董培航 李艳国 袁振雄 武迪 罗永安

邹芹, 董培航, 李艳国, 袁振雄, 武迪, 罗永安. 结合剂比例和cBN粒度配比对PcBN复合材料微观结构和性能的影响[J]. 金刚石与磨料磨具工程, 2024, 44(2): 185-192. doi: 10.13394/j.cnki.jgszz.2023.0090
引用本文: 邹芹, 董培航, 李艳国, 袁振雄, 武迪, 罗永安. 结合剂比例和cBN粒度配比对PcBN复合材料微观结构和性能的影响[J]. 金刚石与磨料磨具工程, 2024, 44(2): 185-192. doi: 10.13394/j.cnki.jgszz.2023.0090
ZOU Qin, DONG Peihang, LI Yanguo, YUAN Zhenxiong, WU Di, LUO Yongan. Effects of the ratio of binder and the ratio of cBN particle size on the microstructure and properties of PcBN composites[J]. Diamond & Abrasives Engineering, 2024, 44(2): 185-192. doi: 10.13394/j.cnki.jgszz.2023.0090
Citation: ZOU Qin, DONG Peihang, LI Yanguo, YUAN Zhenxiong, WU Di, LUO Yongan. Effects of the ratio of binder and the ratio of cBN particle size on the microstructure and properties of PcBN composites[J]. Diamond & Abrasives Engineering, 2024, 44(2): 185-192. doi: 10.13394/j.cnki.jgszz.2023.0090

结合剂比例和cBN粒度配比对PcBN复合材料微观结构和性能的影响

doi: 10.13394/j.cnki.jgszz.2023.0090
基金项目: 河北省高等学校科学技术研究项目(ZD2021099)。
详细信息
    作者简介:

    邹芹,女,1978年生,博士、教授。主要研究方向:超硬材料、高熵陶瓷等。E-mail:zq@ysu.edu.cn

    李艳国,男,1978年生,博士、副研究员。主要研究方向:超硬材料、先进钢材料等。E-mail:lyg@ysu.edu.cn

  • 中图分类号: TB333; TG58

Effects of the ratio of binder and the ratio of cBN particle size on the microstructure and properties of PcBN composites

  • 摘要: 在高温高压条件下制备了聚晶立方氮化硼(PcBN)复合材料。采用X射线衍射(XRD)、扫描电子显微镜(SEM)、能谱仪(EDS)等研究了结合剂配比和立方氮化硼(cBN)粒度对PcBN复合材料的成分、微观结构、显微硬度和磨耗比的影响。实验结果表明:在压力5.5 GPa,温度1400 ℃,保温10 min的烧结条件下,当V(TiN0.3)∶V(AlN)=70∶30时,PcBN复合材料性能较为优异,硬度最高达到22.7 GPa,磨耗比达到149.2;当PcBN复合材料中cBN粒度组合为V(0.5~1 μm)∶V(2~5 μm)∶V(5~10 μm) =3∶5∶2时,颗粒之间的堆积密度达到最高,性能也达到最优。

     

  • 图  1  复合材料的硬度、磨耗比随TiN0.3与AlN体积比的变化

    Figure  1.  Variation of hardness and abrasive ratio of composites with variation of TiN0.3 to AlN volume ratio

    图  2  TiN0.3和AlN体积比为70∶30和60∶40时PcBN复合材料的XRD图

    Figure  2.  XRD image of PcBN composites with TiN0.3 and AlN ratios of 70∶30 and 60∶40

    图  3  cBN颗粒的SEM图

    Figure  3.  SEM image of cBN particles

    图  4  S1与S2组PcBN复合材料断口SEM图

    Figure  4.  SEM images of fractures of S1 and S2 PcBN composites

    (a) VTiN0.3VAlN=60∶40(b) VTiN0.3VAlN=70∶30

    图  5  TiN0.3/AlN/cBN系列PcBN复合材料断口的SEM图

    Figure  5.  SEM image of TiN0.3/AlN/cBN PcBN composites fracture

    VTiN0.3VAlN=70∶30

    图  6  PcBN复合材料的硬度、磨耗比随cBN粒度组合变化图

    Figure  6.  Images of hardness and abrasive ratio of PcBN composites with the combination of cBN particle size

    图  7  粒度组合为V1V2V3=3∶5∶2的PcBN复合材料断口SEM图

    Figure  7.  SEM images of the fracture of PcBN composite with particle size combination of V1V2V3=3∶5∶2

    表  1  PcBN复合材料样品编号以及原料配比

    Table  1.   PcBN composite sample numbers and raw material ratios

    编号cBN粒度组合结合剂配比
    S1V1V2V3=
    5∶3∶2
    VTiN0.3VAlN=
    70∶30
    S2VTiN0.3VAlN=
    60∶40
    V1V2V3=
    5∶3∶2
    S3V1V2V3=
    4∶4∶2
    VTiN0.3VAlNVTaC=
    64∶27∶9
    V1V2V3=
    3∶5∶2
    V1V2V3=
    5∶3∶2
    S4V1V2V3=
    4∶4∶2
    VTiN0.3VAlNVWCVVC=
    56∶24∶10∶10
    V1V2V3=
    3∶5∶2
    V1V2V3=
    5∶3∶2
    S5V1V2V3=
    4∶4∶2
    VTiN0.3VAlNVTaCVNbC=
    62.3∶26.7∶9.0∶2.0
    V1V2V3=
    3∶5∶2
    下载: 导出CSV

    表  2  eZAF 智能定量结果(物质的量分数)

    Table  2.   eZAF intelligent quantification results (mole fraction)

    元素点1点 2点 3点 4点 5点 6
    B K38.430.4428.3140.807.8922.12
    C K5.915.6719.2936.717.9716.02
    N K48.0335.3545.710.0843.7228.67
    Al K4.2656.603.155.3835.733.53
    Ti K3.331.903.4616.854.6129.08
    Ta L0.030.040.070.170.080.57
    下载: 导出CSV
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  • 收稿日期:  2023-04-16
  • 修回日期:  2023-09-13
  • 录用日期:  2023-11-07
  • 网络出版日期:  2023-11-07
  • 刊出日期:  2024-04-01

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