... organic compounds Raman spectra scanning electron microscopy thin films wear resistant coatings X-ray chemical analysis X-ray photoelectron spectra diamondlike carbon coating lubricant additives boundary lubrication coating durability EDX was performed in the wear track to verify...

... reliability, particularly when the bearing temperature is higher than the ambient conditions. foil bearings solid lubricants coatings DLC diamondlike carbon coating high temperatures high speeds coefficient of friction diamond-like carbon friction lubricants machine bearings...