What is ISO 21874- PVD multi-layer hard coatings about?
ISO 21874 is an International Standard that discusses PVD multi-layer hard coatings.
ISO 21874 specifies the evaluation standard of the composition, structure, and properties of multi-layer hard coatings by common physical vapor deposition (PVD), indicating a vacuum deposition method that produces a material source by evaporation, sputtering, or related non-chemical ways.
PVD technology is highly adapted to realizing novel and advanced coating concepts such as gradient coatings, metastable coatings, multi-component coatings, multilayer coatings, and superlattice coatings. Among these coating concepts, multilayer coatings appear to be the most promising since they suit a wide range of requirements for a composite subjected to complex wear conditions.
Who is ISO 21874- PVD multi-layer hard coatings for?
ISO 21874 ...