Scholarlink

<p>This study investigates the oxidation resistance and tribological performance of MoS<sub>2</sub> nanoparticles under severe environmental conditions. Friction tests were conducted in dry and strictly controlled environments using a reciprocating pin-on-flat tribometer installed in a controlled environment chamber. This system was connected via a transfer chamber to an XPS spectrometer, enabling post-mortem analysis of the rubbed surfaces without air exposure. The friction tests were performed under pressures ranging from 10<sup>−9</sup> to 200&#xa0;mbar (simulating ambient air) and at two temperatures (25 and 100&#xa0;°C). The results show that the nanoparticles maintain excellent tribological performance and good chemical stability from ultrahigh vacuum up to 200&#xa0;mbar of oxygen at 25&#xa0;°C, and up to 1&#xa0;mbar of oxygen at 100&#xa0;°C. The increase in the friction coefficient observed under certain experimental conditions is attributed to particle oxidation.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Resistance to Oxidation and Tribological Behavior of MoS2 Nanoparticles in Severe Environmental Conditions

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年3月13日

查看全文
  • Marina Benmansour,
  • Pavel Afanasiev,
  • Jules Galipaud,
  • Lucile Joly-Pottuz,
  • Fabrice Dassenoy

摘要

This study investigates the oxidation resistance and tribological performance of MoS2 nanoparticles under severe environmental conditions. Friction tests were conducted in dry and strictly controlled environments using a reciprocating pin-on-flat tribometer installed in a controlled environment chamber. This system was connected via a transfer chamber to an XPS spectrometer, enabling post-mortem analysis of the rubbed surfaces without air exposure. The friction tests were performed under pressures ranging from 10−9 to 200 mbar (simulating ambient air) and at two temperatures (25 and 100 °C). The results show that the nanoparticles maintain excellent tribological performance and good chemical stability from ultrahigh vacuum up to 200 mbar of oxygen at 25 °C, and up to 1 mbar of oxygen at 100 °C. The increase in the friction coefficient observed under certain experimental conditions is attributed to particle oxidation.