Long-term low-friction of Ti-overcoated and-doped DLCs: Robustly developed carbonous transfer layer with titanium
Long-term low-friction of Ti-overcoated and-doped DLCs: Robustly developed carbonous transfer layer with titanium
复制标题
钛涂层和掺杂 DLC 的长期低摩擦：稳健开发的钛碳转移层
DOI：
10.1016/j.carbon.2022.12.012
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发表时间：
2023
期刊：
影响因子：
10.9
通讯作者：
Umehara Noritsugu
中科院分区：
文献类型：
--
作者：
Kim Jae-Il;Lee Woo-Young;Tokoroyama Takayuki;Umehara Noritsugu
类金刚石碳（DLC）作为一种特殊的固体润滑剂，一直受到人们的关注。其摩擦性能取决于其对应物上的良好的转移层。如今，铁基和黄铜基金属已被用作对抗DLC的对应物，然而，据报道，它们的摩擦行为与钛合金相比稍差。本研究通过在类金刚石中添加Ti元素，改善了类金刚石的摩擦性能，并将其接触界面由Fe/C改性为C/C。结果表明，Ti对Fe和C有较好的结合力，促进了碳在Fe基复合材料上的转移。此外，Ti在DLC膜表面形成了较厚的碳转移层，改善了DLC膜的摩擦性能。
Diamond-like carbon (DLC) has been under the research spotlight as an exceptional solid lubricant. Its friction performance is depending on a well-developed transfer layer upon its counterparts. Nowadays, iron-and brass-based metals have been utilized as the counterpart against DLC, however, it is reported their friction behaviors are somewhat inferior compared to titanium alloys. In this study, we tried to improve their friction behaviors and modified the contact interface from Fe/C to C/C by Ti addition in DLC. It was revealed that Ti, which has good adhesion for Fe and C, promoted the development of carbon transfer on Fe-based counterpart. Furthermore, Ti built-up a thick carbonous transfer layer and make better the friction performance of DLC sliding against Fe.