CAJ | 학술논문

通过湿法化学研磨方法制备了纳米石墨滤饼,并通过相转移方法移入润滑油中。获得了分散稳定性良好的纳米石墨润滑油。使用四球摩擦磨损试验机研究了抗磨性、承载能力、摩擦系数,通过扫描电镜对磨斑的形貌进行了观察,开初步探讨了纳米石墨减摩机理。研究表明在392 N的负荷下,在基础油中加入纳米石墨颗粒时,其磨斑直径可由0.52 mm下降至0.46 mm,摩擦系数由0.086 7下降至0.061 2,承载能力基本保持不变,认为其中纳米石墨粒子在摩擦面之间所形成的石墨层起到了抗磨减摩作用,所以含有超细石墨颗粒的润滑油具有良好的摩擦学性能。
통과습법화학연마방법제비료납미석묵려병,병통과상전이방법이입윤활유중。획득료분산은정성량호적납미석묵윤활유。사용사구마찰마손시험궤연구료항마성、승재능력、마찰계수,통과소묘전경대마반적형모진행료관찰,개초보탐토료납미석묵감마궤리。연구표명재392 N적부하하,재기출유중가입납미석묵과립시,기마반직경가유0.52 mm하강지0.46 mm,마찰계수유0.086 7하강지0.061 2,승재능력기본보지불변,인위기중납미석묵입자재마찰면지간소형성적석묵층기도료항마감마작용,소이함유초세석묵과립적윤활유구유량호적마찰학성능。
The graphite nanoparticles prepared in water were introduced to lubricating oil by phase transfer.Tribological experiments were performed to determined anti-wear capability,load capacity and friction coefficient of the modified lubricant.The graphite addition reduced the diameter of friction scar from 0.52 to 0.46 mm and the friction coefficient from 0.086 7 to 0.061 2 while having no effect on the load capacity.The graphite layers formed by the nanoparticles prevented the immediate contact between the two ...