Structure and Structural Characteristics of Near-Surface Areas after CVD Coating

摘要

All mechanical strength parameters of CVD hard material coatings possess a well-defined dependence on the coating thickness. The presence of an optimum coating thickness may be concluded from structural as well as from stability aspects. Both adhesion and stability of coatings are strongly determined by the residual stress as well as by the interface structure. With this in mind, more intensive research work into these problems would be helpful and necessary. Another unsolved problem is the registration of gradients of both elemental distribution and structure in the coatings. Although these parameters may influence the mechanical coating behavior rather decisively, there are few investigations by now. A methodical supposition to future experiments would be the development of techniques with a high depth resolution. (ERA citation 11:013712)