Fabrication of diamond-WC-Co composites at high temperature and high pressure

YANG Yanan; WANG Haikuo; HOU Zhiqiang; WU Jiakun; WANG Chao

doi:10.13394/j.cnki.jgszz.2021.2.0009

Volume 41 Issue 2

Apr. 2021

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Article Navigation > Diamond & Abrasives Engineering > 2021 > 41(2): 53-58

YANG Yanan, WANG Haikuo, HOU Zhiqiang, WU Jiakun, WANG Chao. Fabrication of diamond-WC-Co composites at high temperature and high pressure[J]. Diamond & Abrasives Engineering, 2021, 41(2): 53-58. doi: 10.13394/j.cnki.jgszz.2021.2.0009

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YANG Yanan, WANG Haikuo, HOU Zhiqiang, WU Jiakun, WANG Chao. Fabrication of diamond-WC-Co composites at high temperature and high pressure[J]. Diamond & Abrasives Engineering, 2021, 41(2): 53-58. doi: 10.13394/j.cnki.jgszz.2021.2.0009

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Fabrication of diamond-WC-Co composites at high temperature and high pressure

doi: 10.13394/j.cnki.jgszz.2021.2.0009

1. Institute of Materials Pressing Treatment, School of Materials Science and Engineering, Henan University of Technology, Zhengzhou 450001, China;
2. College of Energy Engineering, Zhejiang University, Hangzhou 310000, China

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Rev Recd Date: 2021-03-15

Available Online: 2022-04-06

Abstract

Abstract

Diamond-WC-Co composites is prepared by using the high pressure cubic cell at 5.50 GPa and 1 100~1 500 °C for 2 min, with mass fraction of 5% diamond powder (average grain size 7 μm), 90% WC powder (average grain size 150 nm), 5% Co powder (average grain size 0.9 μm) as the starting materials. The sample characterization is performed through the X-ray diffraction, Raman spectrum, scanning electron microscope and Vickers hardness tester. The synthesized diamond-WC-Co composites has a uniform phase distribution, and the diamond particles are well bonded with the cemented carbide matrix. The sample has the best performance under the thermodynamic conditions of 5.50 GPa and 1 250 ℃ for 2 min, with a relative density of 96% and a Vickers hardness of 23.60 GPa.
- high temperature and high pressure,
- diamond,
- WC-Co,
- composites

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Fabrication of diamond-WC-Co composites at high temperature and high pressure

doi: 10.13394/j.cnki.jgszz.2021.2.0009

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Fabrication of diamond-WC-Co composites at high temperature and high pressure

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