Quality Control Metrics to Assess MoS2 Sputtered Films for Tribological Applications
Quality Control Metrics to Assess MoS2 Sputtered Films for Tribological Applications
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DOI：
10.1007/s11249-022-01642-y
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发表时间：
2022-12-01
影响因子：
3.2
通讯作者：
Krick, Brandon A.
中科院分区：
文献类型：
--
作者：
Babuska, Tomas F.;Curry, John F.;Krick, Brandon A.
纯二硫化钼（MoS2）固体润滑剂涂层可以获得与掺杂膜相当的密度（以及相关的磨损率和环境稳定性），通过沉积参数操纵微观结构。不幸的是，由于沉积过程中不受控制（即批与批之间的变化），纯薄膜可能表现出高度可变的微观结构和机械性能。这项工作的重点是发展密度、硬度、摩擦和磨损之间的关系，为纯溅射MoS2涂层。结果表明，致密膜（rho = 4.5 g/cm(3)）的磨损率比多孔膜（rho = 3.04-3.55 g/cm(3)）低100倍。高密度纯MoS2涂层的摩擦学性能优于现有的复合涂层，在惰性环境中，其磨损率比复合MoS2/Sb2O3/Au低2倍(k = 5.74 x 10（-8) mm(3)/Nm）。
Pure molybdenum disulfide (MoS2) solid lubricant coatings could attain densities comparable to doped films (and the associated benefits to wear rate and environmental stability) through manipulation of the microstructure via deposition parameters. Unfortunately, pure films can exhibit highly variable microstructures and mechanical properties due to processes that are not controlled during deposition (i.e., batch-to-batch variation). This work focuses on developing a relationship between density, hardness, friction, and wear for pure sputtered MoS2 coatings. Results show that dense films (rho = 4.5 g/cm(3)) exhibit a 100 x lower wear rate compared to porous coatings (rho = 3.04-3.55 g/cm(3)). The tribological performance of high density pure MoS2 coatings is shown to surpass that of established composite coatings, achieving a wear rate 2 x (k = 5.74 x 10(-8) mm(3)/Nm) lower than composite MoS2/Sb2O3/Au in inert environments.