Surface & Coatings Technology2022，Vol.43612.DOI:10.1016/j.surfcoat.2022.128291

Microstructural characterization, wettability and cytocompatibility of gradient coatings synthesized by gas nitriding of three-layer Ti/Ni/Ti nanolaminates magnetron sputtered on the TiNi substrate

Baigonakova, G. A. Marchenko, E. S. Yasenchuk, Yu F. Kokorev, O., V Vorozhtsov, A. B. Kulbakin, D. E.
Surface & Coatings Technology2022，Vol.43612.DOI:10.1016/j.surfcoat.2022.128291
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  • NSTL
  • Elsevier

Microstructural characterization, wettability and cytocompatibility of gradient coatings synthesized by gas nitriding of three-layer Ti/Ni/Ti nanolaminates magnetron sputtered on the TiNi substrate

Baigonakova, G. A. 1Marchenko, E. S. 1Yasenchuk, Yu F. 1Kokorev, O., V 1Vorozhtsov, A. B. 1Kulbakin, D. E.2
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作者信息

  • 1. Natl Res Tomsk State Univ
  • 2. Russian Acad Sci
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Abstract

In the study, gradient coatings with a nanometer thickness were successfully synthesized from Ti/Ni/Ti nano-laminates on the TiNi substrate in a nitrogen atmosphere at 900 degrees C. A technique for producing a gradient coating includes magnetron sputtering of Ti/Ni/Ti nanolayers with a total thickness of 75 nm and 150 nm on a TiNi substrate and further synthesis of the coating by annealing the sample in a nitrogen atmosphere. The developed technique allows to form stable phases of titanium nitride and intermetallic oxynitrides, which are a reliable barrier to nickel diffusion from the substrate to the surface. No nickel was found on the surface of the synthesized coatings. In the synthesized coating from 150 nm thick nanolaminate, these barriers are Ti4Ni2(N,O) and TiN phases. In the synthesized coating from 75 nm thick nanolaminate, these barriers are two continuous TiN layers. The cytocompatibility of the coating synthesized from Ti/Ni/Ti nanolaminates with a total thickness of 150 nm was positively affected by a mixed-phase composition of titanium nitrides and oxides, moderate roughness and hydrophilicity.

Key words

Surface/TiNi/Magnetron sputtering/Synthesis/Multilayer nanolalaminates/Gas nitriding/IMMERSION ION-IMPLANTATION/SHAPE-MEMORY ALLOY/SURFACE MODIFICATION/CORROSION BEHAVIOR/NITI ALLOY/PART I/TITANIUM/BIOMATERIALS/DEPOSITION/RESISTANCE

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出版年

2022
Surface & Coatings Technology

Surface & Coatings Technology

ISTP
ISSN：0257-8972
被引量3
参考文献量57
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