首页|Structural reorientation and compaction of porous MoS_2 coatings during wear testing
Structural reorientation and compaction of porous MoS_2 coatings during wear testing
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
Industrial upscaling frequently results in a different coating microstructure than the laboratory prototypes presented in the literature. Here, we investigate the wear behavior of physical vapor deposited (PVD) MoS_2 coatings: A dense, nanocrystalline MoS_2 coating, and a porous, prismatic-textured MoS_2 coating. Transmission electron microscopy (TEM) investigations before and after wear testing evidence a crystallographic reorientation towards a basal texture in both samples. A basal texture is usually desirable due to its low-friction properties. This favorable reorientation is associated to a tribological compaction of the porous specimens. Following running-in, sliding under high contact pressure ultimately leads to a wear rate as small as for an ideal grown bulk MoS_2 single crystal grown by chemical vapor deposition (CVD). This suggests that the imperfections of industrial grade MoS_2 coatings can be remediated by a suitable pretreatment.
MoS_2TribologyWear testingTransmission electron microscopyNanoindentation
Interdisciplinary Center for Molecular Materials (ICMM) and Computer Chemistry Center (CCC), Friedrich-Alexander-Universitat Erlangen-Nurnberg (FAU)
Institute of Micro- and Nanostructure Research (IMN) & Center for Nanoanalysis and Electron Microscopy (CENEM), Interdisciplinary Center for Nanostructured Films (IZNF), Friedrich-Alexander-Universitat Erlangen-Nurnberg (FAU)
Materials Science & Engineering I and Interdisciplinary Center for Nanostructured Films (IZNF), Friedrich-Alexander-Universitat Erlangen-Nurnberg (FAU)
NSTL
Elsevier
