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Silver-doped hydroxyapatite coatings deposited by suspension plasma spraying
- 1.0498201 - ÚFP 2019 RIV US eng J - Článek v odborném periodiku
Čížek, Jan - Brožek, Vlastimil - Chráska, Tomáš - Lukáč, František - Medřický, Jan - Mušálek, Radek - Tesař, Tomáš - Šiška, Filip - Antos, Z. - Čupera, J. - Matejková, M. - Spotz, Z. - Houdková, Š. - Kverka, Miloslav
Silver-doped hydroxyapatite coatings deposited by suspension plasma spraying.
Journal of Thermal Spray Technology. Roč. 27, č. 8 (2018), s. 1333-1343. ISSN 1059-9630. E-ISSN 1544-1016
Grant CEP: GA ČR GB14-36566G
Institucionální podpora: RVO:61389021 ; RVO:68081723 ; RVO:61388971
Klíčová slova: antibacterial property * HA * hybrid water-stabilized plasma * liquid feedstock * Silver compounds
Obor OECD: Coating and films; Coating and films (UFM-A); Microbiology (MBU-M)
Impakt faktor: 2.129, rok: 2018
https://link.springer.com/article/10.1007/s11666-018-0767-2
Pure hydroxyapatite suspension was produced by wet chemical synthesis. Using a hybrid water-stabilized torch, a series of HA coatings were produced on SS304 and Ti6Al4V substrates and their properties were characterized by SEM, EDX and XRD techniques. After deposition, the amorphous phase content reached 6-10% and the coatings retained 75-82% of crystalline HA phase. Their thickness reached 145 μm. To understand the wear behavior of the coatings, pin-on-disc tribology evaluation was performed. Additionally, a set of HA coatings was prepared with pure metallic Ag content. This formed by in situ chemical decomposition of AgNO3 added into the HA suspension. The Ag was dispersed evenly within the coatings in the form of submicron-sized particles situated predominantly along the HA splats boundaries with a total Ag content of 8 wt.%. Given the antibacterial properties of Ag, such result presents a promising step forward in the hard tissue replacement research.
Trvalý link: http://hdl.handle.net/11104/0290598
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