Benchscale Evaluation of Nanodiamond Oil Additives [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 629.28 Tests, driving, maintenance, repair
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2018
• Mô tả vật lý: Size: 15 p. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 266449
• Chủ đề: 1. 33 advanced propulsion systems

Tóm tắt

This CRADA between Cool-X and ORNL was to investigate the impact of diamond nanoparticles as diesel engine oil additives on lubricating behavior and gain fundamental understanding of the friction and wear reduction mechanisms. Systematic tribological bench tests were used for evaluating the Cool-X diamond nanoparticles (ND) as candidate diesel engine oil additives, and surface characterization was carried out to reveal the friction reduction mechanisms. No significant micro-rolling effect or increased oil pressure-viscosity coefficient was observed. Instead, a faster running-in and moderate friction reduction were achieved by the ND in tests of used diesel engine components, which was attributed to the polishing effect. ND agglomeration seemed to a problem and could significantly impair the functionality and future research is needed to seek the mitigation.