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首页> 外文会议>International Conference of Chinese Society of Micro-Nano Technology;Annual Conference of the Chinese Society of Micro-Nano Technology >Tribological Properties of Magnesium Silicate Powders Prepared by Ball Milling
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Tribological Properties of Magnesium Silicate Powders Prepared by Ball Milling

机译：球磨法制备硅酸镁粉的摩擦学性能

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摘要

Hydroxyl magnesium silicate powders were prepared by planetary-milling machine and a certain amount of No.46 mechanical oil was canned into the stainless steel vial in order to investigate its influence on the size of particles. The tribological properties of the powders in the oil were investigated on a four-ball machine. The morphologies and the chemical components of the worn surfaces were characterized by means of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The ball milling results showed that the adding of mechanical oil decreased the cold welding and agglomeration, finally, fine silicate powders of 2μm in mean size were made. The tribological test results showed that the extreme pressure and antiwear properties of No.46 mechanical oil were improved by the additive obviously. The lubrication mechanism is inferred that a boundary lubrication film is formed and the tribochemical reactions occur on the friction surfaces due to the active agents in the silicate crystal, thus it can be seen that the silicate powders is a new and enviroment friendly lube additive.
机译：用行星式磨粉机制备羟基硅酸镁镁粉，将一定量的46号机械油装入不锈钢小瓶中，以研究其对颗粒尺寸的影响。在四球机上研究了油中粉末的摩擦学性能。磨损表面的形貌和化学成分通过扫描电子显微镜（SEM）和能量色散谱（EDS）进行表征。球磨结果表明，加入机械油可减少冷焊和团聚，最后制得平均粒径为2μm的细硅酸盐粉末。摩擦试验结果表明，该添加剂明显改善了46号机械油的极压和抗磨性能。推测其润滑机理是：由于硅酸盐晶体中的活性剂，形成了边界润滑膜，并且在摩擦面上发生了摩擦化学反应，因此可以看出，硅酸盐粉末是一种新型的环境友好型润滑油添加剂。

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