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Abstract <p>The presence of adsorbed water and hydroxyl groups on the actual surface of modern diamond grinding powders with low strength (grades AC6–AC32) was investigated. By preliminarily separating diamond grinding powders into magnetic, nonmagnetic, and initial fractions, a fraction with the highest amount of water on the surface of the diamond grains can be identified—the magnetic fraction. The Ni–Al composite coating on the diamond surface, as well as the coating with carbon nanotube additives, contribute to the formation of a more developed surface compared to the initial uncoated samples, as evidenced by the greater presence of water.</p>

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Investigating the Presence of Surface Adsorbed Water in Modern Low-Strength Diamond Grains as a Factor Influencing the Contact Zone during Grinding

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • V. I. Lavrinenko,
  • V. V. Smokvyna,
  • H. D. Ilnytska,
  • S. P. Starik,
  • V. A. Tyshchenko

摘要

Abstract

The presence of adsorbed water and hydroxyl groups on the actual surface of modern diamond grinding powders with low strength (grades AC6–AC32) was investigated. By preliminarily separating diamond grinding powders into magnetic, nonmagnetic, and initial fractions, a fraction with the highest amount of water on the surface of the diamond grains can be identified—the magnetic fraction. The Ni–Al composite coating on the diamond surface, as well as the coating with carbon nanotube additives, contribute to the formation of a more developed surface compared to the initial uncoated samples, as evidenced by the greater presence of water.