摘要
对膨胀石墨和铁粉的混合物进行球磨及真空退火处理,制备了石墨包裹铁纳米颗粒,研究了它的结构以及作为润滑油添加剂的摩擦磨损性能,并研究了石墨包裹铁纳米颗粒的形成机理。结果表明：石墨包裹铁纳米颗粒的直径为10~150nm,它由结晶度良好的石墨包裹球形铁纳米颗粒组成;石墨包裹铁纳米颗粒作为润滑油添加剂表现出了良好的减摩抗磨能力,这种能力在高载荷条件下表现得更加显著。
Graphite encapsulated iron nanoparticles were prepared by ball-milling and subsequent vacuum annealing a mixture of expanded graphite and iron powders. The microstructure, friction and wear properties as lubricant additive and forming mechanism of the nanoparticles were investigated. Results show that the nanoparticles had a size range of 10 - 150 nm, and it consisted of graphite with well crystallinity encapsulated spherical iron nanoparticles. The nanoparticles as lubricant additive displayed a well anti-friction and abrasion resistance, and the effect was more remarkable at higher load.
出处
《机械工程材料》
CAS
CSCD
北大核心
2015年第5期73-76,80,共5页
Materials For Mechanical Engineering
基金
河北省科技计划资助项目(12211102)
关键词
球磨
退火
石墨包裹铁纳米颗粒
摩擦磨损性能
ball-milling
annealing
graphite encapsulated iron nanoparticle
friction and wear property
