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Abstract <p>Diamond was synthesized in the Mg–Zn–C system under a pressure of 8 GPa and at a temperature of 1800°C. Following chemical purification, titanium was deposited onto the diamond powder grains via chemical vapor deposition. This study examined how the titanium coating affects the densification kinetics and microstructure of the resulting polycrystalline diamond composite. High-pressure sintering of the titanium-coated diamond powder decreased the temperature required for maximum densification by 300°C, compared with uncoated diamond powder.</p>

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Effect of Titanium Coating Modification of Diamond Powder Grains on the Formation of a Polycrystalline Composite under High Pressure and High Temperature

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • V. O. Vienikov,
  • O. O. Bochechka,
  • O. I. Chernienko,
  • O. S. Osipov,
  • V. V. Bilorusets,
  • A. O. Liamtseva,
  • Yu. O. Melniychuk

摘要

Abstract

Diamond was synthesized in the Mg–Zn–C system under a pressure of 8 GPa and at a temperature of 1800°C. Following chemical purification, titanium was deposited onto the diamond powder grains via chemical vapor deposition. This study examined how the titanium coating affects the densification kinetics and microstructure of the resulting polycrystalline diamond composite. High-pressure sintering of the titanium-coated diamond powder decreased the temperature required for maximum densification by 300°C, compared with uncoated diamond powder.