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

ZOU Qin; DONG Peihang; LI Yanguo; YUAN Zhenxiong; WU Di; LUO Yongan

doi:10.13394/j.cnki.jgszz.2023.0090

Volume 44 Issue 2

Apr. 2024

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Article Navigation > Diamond & Abrasives Engineering > 2024 > 44(2): 185-192

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

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

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

doi: 10.13394/j.cnki.jgszz.2023.0090

1.
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China
2.
School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China

More Information

Received Date: 2023-04-16
Accepted Date: 2023-11-07
Rev Recd Date: 2023-09-13

Available Online: 2023-11-07

Abstract

Abstract

Polycrystalline cubic boron nitride composites were prepared under high-temperature and high-pressure conditions. The effects of bonding agent ratio and cBN particle size on the composition, microstructure, microhardness, and abrasive ratios of the PcBN composites were investigated using X-ray diffraction (XRD), field scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The experimental results showed that the PcBN composites performed better under sintering conditions of 5.5 GPa, 1400 ℃, and a 10-minute holding time, achieving a hardness of up to 22.7 GPa and an abrasion ratio of 149.2 at V(TiN_0.3)∶V(AlN)=70∶30. Moreover, 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 its peak, resulting in optimal performance.
- PcBN composite,
- high pressure and high temperature (HPHT),
- binder,
- particle size

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References(34)

References

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