SiC- and Ag-SiC-Doped Hydroxyapatite Coatings Grown Using Magnetron Sputtering on Ti Alloy for Biomedical Application

Coatings

Anisoara Cimpean¹  Raluca Ion¹  Alina Vladescu²  Iulian Pana²  Viorel Braic²  Anca Constantina Parau²  Mihaela Dinu²  Nicolae Catalin Zoita²  Adrian Emil Kiss²  Mariana Braic² 

[1] Department of Biochemistry and Molecular Biology, University of Bucharest, 91–95 Spl. Independentei, 050095 Bucharest, Romania;National Institute of Research and Development for Optoelectronics INOE2000, 409 Atomistilor St., 077125 Magurele, Romania;

关键词: hydroxyapatite;    SiC- and Ag-SiC-doped hydroxyapatite;    magnetron sputtering;    structure;    corrosion and tribological evaluation;    in vitro biocompatibility test;   

DOI  :  10.3390/coatings12020195

来源: DOAJ

【 摘 要 】

SiC- and Ag-SiC-doped hydroxyapatite (HA) coatings were deposited via magnetron sputtering aiming at increased corrosion protection of Ti-10Nb-10Zr-5Ta alloy in simulated body fluid environment and superior mechanical properties compared to plain hydroxyapatite. The coatings had a total thickness of about 350 nm. The X ray diffraction patterns indicate that HA coatings are polycrystalline with a hexagonal structure and the addition of SiC determined the coating amorphization. All coatings presented a lower roughness compared to the Ti alloy and were hydrophilic. Ag-SiC-HA coating presented the best corrosion resistance and tribological parameters. All coatings were biocompatible, as ascertained via indirect cytocompatibility studies conducted on Vero cells.

【 授权许可】

Unknown