【摘要】 利用 SRV摩擦磨损试验机及静动摩擦系数测定仪考察了 Si O2 陶瓷 / GCr1 5钢摩擦副在干摩擦及水、正丁醇、正癸醇和正辛酸等润滑下的摩擦性能 .结果表明 ,小振幅往复摩擦磨损条件下的摩擦系数顺序为 :干摩擦 >水 >正丁醇 >正癸醇≈正辛酸 ;静动摩擦条件下摩擦系数顺序为 :水 >正丁醇 >正癸醇 >干摩擦 >正辛酸 .利用 DSC对润滑剂同 Si O2 之间的反应活性进行了模拟考察 .发现润滑剂同陶瓷表面之间的反应活性越高 ,摩擦系数越高 .反应活性顺序为 :水 >正丁醇 >正癸醇 >正辛酸 ,摩擦化学反应膜的特性对摩擦学性能都具有重要影响 .更多还原

【Abstract】 The friction behavior of SiO 2/GCr15 in dry air and lubricated with distilled water, 1 butanol,1 decanol and octanoic acid was investigated using SRV ball on disk test rig and a Kyowa DF·PM one way reciprocating friction tester. The reactivity between the lubricants and SiO 2 surface was simulated by differential scanning calorimetry (DSC). As the results, the order of the friction coefficient under oscillating condition can be ranked as dry air>distilled water>1 butanol>1 decanol≈octanoic acid, that under one way reciprocating condition can be ranked as distilled water>1 butanol>1 decanol>dry air≈octanoic acid. The order of the reactivity between the lubricants and SiO 2 surface is distilled water>1 butanol>1 decanol>octanoic acid. Thus the higher the reactivity between the lubricants and SiO 2 surface, the higher the friction coefficient will be. The characteristics of the tribochemical reaction film could play an important role in governing the friction behavior of SiO 2 ceramic.更多还原