• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>World Tribology Congress III vol.1; 20050912-16; Washington,DC(US) >CARBON NANOTUBES AND ONIONS AS LUBRICANT ADDITIVES
【24h】

CARBON NANOTUBES AND ONIONS AS LUBRICANT ADDITIVES

机译：碳纳米管和洋葱作为润滑剂添加剂

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Most of lubricant additives used as friction modifier and anti-wear agents are mainly organic compounds containing sulphur and phosphorous. Their lubrication mechanism is based on a tribochemical reaction leading to tribofilm formation but also the formation of some harmful by-products. Inorganic nanoparticles (nanotubes, fullerenes, onions...), because of their unique morphology and very small size, could be envisaged for the replacement of such organic additives. The purpose of this work is to study and compare the tribological properties of different kinds of nanoparticles added and dispersed as additives to a lubricating base oil. Here, we are particularly interested in carbon nanotubes and graphite onions which were then tested and compared. Added to a poly-alpha-olefin (PAO) base oil, all nanoparticles tested show a reduction of both friction and wear of steel counterfaces. The detailed study of the concentration effect in PAO shows that 1 wt% of nanotubes is sufficient to obtain good tribological properties. A structural modification of nanoparticles during friction was clearly evidenced by analytical TEM. In the case of nanotubes, flake-like wear debris made of amorphous carbon have been observed.
机译：用作摩擦改进剂和抗磨剂的大多数润滑剂添加剂主要是含有硫和磷的有机化合物。它们的润滑机理基于摩擦化学反应，导致形成摩擦膜，但也形成了一些有害的副产物。无机纳米颗粒（纳米管，富勒烯，洋葱等），由于其独特的形态和非常小的尺寸，可以设想用来代替这种有机添加剂。这项工作的目的是研究和比较作为添加剂添加和分散到润滑基础油中的各种纳米颗粒的摩擦学性能。在这里，我们对经过测试和比较的碳纳米管和石墨洋葱特别感兴趣。添加到聚α-烯烃（PAO）基础油中，所有测试的纳米颗粒均显示出钢对接面的摩擦和磨损减少。对PAO中浓度效应的详细研究表明，1 wt％的纳米管足以获得良好的摩擦学性能。分析型TEM清楚地证明了纳米颗粒在摩擦过程中的结构改性。在纳米管的情况下，已经观察到由无定形碳制成的片状磨损碎片。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号