CN 41-1243/TG ISSN 1006-852X
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Effect of component design and optimization on the organization and properties of PcBN composites[J]. Diamond & Abrasives Engineering. doi: 10.13394/j.cnki.jgszz.2023.0090
Citation: Effect of component design and optimization on the organization and properties of PcBN composites[J]. Diamond & Abrasives Engineering. doi: 10.13394/j.cnki.jgszz.2023.0090

Effect of component design and optimization on the organization and properties of PcBN composites

doi: 10.13394/j.cnki.jgszz.2023.0090
Funds:  Funded by Science and Technology Project of Hebei Education Department
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  • Received Date: 2023-04-16
  • Accepted Date: 2023-11-07
  • Rev Recd Date: 2023-09-13
  • Available Online: 2023-11-07
  •   The polycrystalline cubic boron nitride composites were prepared under high temperature and pressure conditions. The effects of bonding agent ratio and cBN particle size on the composition, microstructure, microhardness, density and abrasive ratios of PcBN composites were investigated by X-ray diffraction (XRD), field scanning electron microscopy (SEM) and energy spectroscopy (EDS). The experimental results showed that the PcBN composites performed better under the sintering conditions of 5.5 GPa, 1400 ℃, and 10 min holding time, with a hardness of up to 22.7 GPa and an abrasion ratio of 149.2 at TiN0.3: AlN=7: 3. When the particle size combination of cBN in PcBN composites is (0.5~1) μm: (2~5) μm: (5~10) μm = 3: 5: 2, the packing density between particles reaches the highest and the performance is optimal.

     

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    通讯作者: 陈斌, bchen63@163.com
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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