A review of preparing binderless PcBN at high temperature and high pressure

WANG Chuqi; KOU Zili

doi:10.13394/j.cnki.jgszz.2021.0409

Volume 42 Issue 2

May 2022

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WANG Chuqi, KOU Zili. A review of preparing binderless PcBN at high temperature and high pressure[J]. Diamond & Abrasives Engineering, 2022, 42(2): 162-168. doi: 10.13394/j.cnki.jgszz.2021.0409

Citation:

WANG Chuqi, KOU Zili. A review of preparing binderless PcBN at high temperature and high pressure[J]. Diamond & Abrasives Engineering, 2022, 42(2): 162-168. doi: 10.13394/j.cnki.jgszz.2021.0409

WANG Chuqi, KOU Zili. A review of preparing binderless PcBN at high temperature and high pressure[J]. Diamond & Abrasives Engineering, 2022, 42(2): 162-168. doi: 10.13394/j.cnki.jgszz.2021.0409

Citation:

WANG Chuqi, KOU Zili. A review of preparing binderless PcBN at high temperature and high pressure[J]. Diamond & Abrasives Engineering, 2022, 42(2): 162-168. doi: 10.13394/j.cnki.jgszz.2021.0409

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A review of preparing binderless PcBN at high temperature and high pressure

doi: 10.13394/j.cnki.jgszz.2021.0409

WANG Chuqi,
KOU Zili^,

Institute of Atomic and Molecular Physics, Sichuan University , Chengdu 610065, China

More Information

Received Date: 2021-04-09
Accepted Date: 2022-03-09
Rev Recd Date: 2022-01-21

Abstract

Abstract

Polycrytalline cubic boron nitride, PcBN for short, has the advantages of large size, isotropy and no cleavage plane so that it is widely used. Commercial PcBNs are generally sintered with binders to reduce sintering conditions to pressures ranging from 5.5 to 7.7 GPa and temperatures of 1600 to 2300 K. However, binders reduce the performance of the product, Vickers hardness ranging from 22 to 45 GPa for example. Based on the fact that the material itself is the best binder, pure phase PcBNs were prepared by four different initial materials, the sintering behavior and the properties of which were introduced and evaluated. In conclusion, the pure phase PcBN material with good performance can be prepared by using cBN as the initial material and adopting related processes.
- polycrystalline cubic boron nitride,
- pure phase sintering,
- high temperature and high pressure,
- superhard materials

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References(24)

References

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