球磨、退火法制备石墨包裹铁纳米颗粒的摩擦磨损性能
Microstructure and Friction and Wear Properties of Graphite Encapsulated Iron Nanoparticles Prepared by Ball-milling and Annealing Method
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10~150 nm,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.
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
Abstract
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.
中图分类号 TB383 TH117.3
所属栏目 材料性能及其应用
基金项目 河北省科技计划资助项目(12211102)
收稿日期 2014/1/22
修改稿日期 2014/12/21
网络出版日期
作者单位点击查看
备注岳学庆(1970-),男,河北秦皇岛人,副教授,博士.
引用该论文: YUE Xue-qing,WANG Hua,LIU Le-cun,WANG Xi,YAN Zhi-hao. Microstructure and Friction and Wear Properties of Graphite Encapsulated Iron Nanoparticles Prepared by Ball-milling and Annealing Method[J]. Materials for mechancial engineering, 2015, 39(5): 73～76
岳学庆,王华,刘乐存,王熙,闫志浩. 球磨、退火法制备石墨包裹铁纳米颗粒的摩擦磨损性能[J]. 机械工程材料, 2015, 39(5): 73～76
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参考文献
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【4】OYAMA T,TAKEUCHI K.Gas phase synthesis of crystalline B4C encapsulated in graphitic particles by pulsed laser irradiation[J].Carbon,1999,37(3):433-436.
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【6】FLAHAUT E,AGNOLI F,SLOAN J,et al.CCVD synthesis and characterization of cobalt encapsulated nanoparticles [J].Chem Mater,2002,14(6):2553-2558.
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【12】孙力学,陈志刚,邱涛,等.膨胀石墨改性对甲醛吸附性能的影响[J].机械工程材料,2009,33(1):59-63.
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