A new combined approach to metal-ceramic implants with controllable surface topography, chemistry, blind porosity, and wettability

摘要: Abstract The present work focuses on the surface modification of Ti alloys using a combination various techniques such as cold spray (CS), selective laser sintering (SLS), pulsed electro-erosion treatment (PEET), and magnetron sputtering to control topography (roughness blind porosity), chemistry, wettability, i.e. characteristics which affect osseointegration. sample structure, elemental composition, topography, wettability were studied X-ray diffraction, optical scanning electron microscopy, glow discharge emission spectroscopy, energy dispersive water contact angle measurements. obtained results show that coatings deposited by CS can be divided into three groups with characteristic value average roughness R : (i) 4 μm (single particles agglomerates surface), (ii) 22 μm (thin coatings), (iii) 80 μm (thick coatings). PEET pulse energies 0.025 0.38 J resulted in values 3 8 μm, respectively. During SLS, powder paths sintered beam mutually perpendicular directions form network structures. By varying distance between tracks, samples porosity 1.0–5.1 × 10 − 3  mm obtained. In order modify multifunctional bioactive nanostructured TiCaPCON films, 1–2 μm thick, atop CS, PEET, SLS composite TiC 0.5  + Ca (PO 4 ) 2 target. measurements showed modified surfaces exhibit high angle. Ion etching vacuum film deposition made highly hydrophilic. influence chemistry adhesion, proliferation, early stages osteoblasts differentiation was studied. hydrophilicity biocompatibility makes fabricated metal-ceramic materials promising candidates for applications involving tissue regeneration.