Tribo-induced catalytically active oxide surfaces enabling the formation of the durable and high-performance carbon-based tribofilms
Tribo-induced catalytically active oxide surfaces enabling the formation of the durable and high-performance carbon-based tribofilms
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DOI：
10.1016/j.triboint.2023.108476
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发表时间：
2023-06
影响因子：
6.2
通讯作者：
Kim Khai Huynh;S. Pham;A. Tieu;S. Collins;Cheng Lu;Shanhong Wan
中科院分区：
文献类型：
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作者：
Kim Khai Huynh;S. Pham;A. Tieu;S. Collins;Cheng Lu;Shanhong Wan
尽管关于含碳摩擦膜在恶劣边界条件下的高温性能的信息很少，但含碳摩擦膜的研究引起了人们的极大兴趣。本文研究了由环丙烷羧酸(CPCA)和NiAl-层状双氢氧化物(LDH)纳米粒子制备的碳摩擦膜的高温润滑性。NiAl-LDH纳米颗粒显著提高了CPCA在50℃和100℃下的摩擦稳定性和抗磨性能，与基准的二烷基二硫代磷酸锌(ZDDP)相当。高石墨化的非晶态碳摩擦膜和由NiAl-LDH的热分解产物构成的细晶中间摩擦层使其具有如此优异的润滑性能。本研究为开发耐高温、高性能含碳摩擦膜的功能性抗磨添加剂铺平了道路。
Carbon-containing tribofilms have attracted significant interest in the lubrication research despite a scarcity of information on their high-temperature performance under severe boundary conditions. In this study, high-temperature lubrication of the carbon tribofilm produced from cyclopropane carboxylic acid (CPCa) and NiAl-layered double hydroxide (LDH) nanoparticles was evaluated. NiAl-LDH nanoparticles significantly enhanced the friction stability and antiwear performance of CPCa by over 90% at 50°C and 100°C, comparable to the benchmark zinc dialkyldithiophosphates (ZDDPs). The highly graphitic amorphous carbon tribofilms and the fine-grain intermediate tribolayer constructed by the thermal decomposition products of NiAl-LDH contributed to such excellent lubrication performance. This study paves a pathway in developing functional anti-wear additives for the durable and high-performance carbon-containing tribofilms at high temperatures.