| Sažetak: | Biocompatible calcium phosphate (CaP) coatings are widely used in stomatology and traumaticsurgery. This material is very appropriate for the medical areas, due to it provides connectionhardness of metal implants with bone tissue. Different techniques of CaP coating deposition are used: sol-gel method, physical and electro chemical vapor deposition, laser evaporation and etc. All these technologies form the coatings which possess by different drawbacks: low crystallinity, secondary phase presence, low adhesion and mechanical characteristics, restricted time service of coatings and others. These drawbacks are explained by small range control of coating characteristics during deposition process. Method of coating deposition from ablation plasma, which is generated during interaction of CaP target and high-power pulsed ion beams (HPPIB), has very promising potential. Our researches show that HPPIB technique allows produce nano-sized, multilayer coatings of any kind of materials: metals, alloys and ceramics. Structure of such coatings is interchange of nanosized layers, in turn growth and size of formed phases are restricted by thickness of depositing layer. As a results of these, the coating formed with nano-sized phases have low intrinsic tensions and possess good mechanical characteristics. The results of experimental research of mechanical and tribological characteristics of calcium phosphate coatings, deposited by means of HPPIB are presented in this work |
|---|
