Properties of CaP coatings produced by reactive RF-magnetron sputtering in a mixture of nitrogen and noble gases

Calcium phosphate coatings are widely used to increase the biocompatibility of metal implants. Nowadays various dopants in structure calcium actively studied. Nitric oxygen is known as an essential mediator blood flow. Its presence coating can stimulate angiogenesis and promote osseointegration implant. This article dedicated study morphology physico-chemical properties formed via reactive RF-$$$magnetron sputtering hydroxyapatite mixture noble gases (Ne, Ar Xe) nitrogen with same volume concentrations. There a decrease grain size roughness growth atomic mass gas nitrogen. The Ca/P ratio also decreases gas. Coatings Ne + N2 Xe mixtures characterized by higher surface free energy comparison ones N2. It allows us suggest that more biocompatible than N2, however, additional studies needed prove it.