Optical fibers are drawn with resin coatings that protect the glass. In general UV-curable resins are used for the coatings, and in most single-mode (SM) fibers a dualcoating structure is adopted. Each coating layer has an independent function in the protection of the glass. The coating in direct contact with the glass is known as the primary (P) coating, with the role of acting as a buffer aga...

In this review, the operating principles of nano-impact test technique are described, compared and contrasted to micro- macro-scale impact tests. Impact fatigue mechanisms discussed, behaviour three different industrially relevant coating systems has been investigated in detail. The (i) ultra-thin hard carbon films on silicon, (ii) DLC hardened tool steel (iii) nitrides WC-Co. influence mechani...

In general, the mechanical properties of hard thin coatings are investigated using indentation methods. Material characteristics coatings, such as elastic modulus and hardness, evaluated by means nanoindentation an appropriate evaluation methodology. The most popular method used to obtain coating required is based on Oliver Pharr Adhesion wear can be calculated these data. this study, we a nove...