Influence of ceramic particles character on resulted properties of zinc-hydroxyapatite/monetite composites

0543076 - FZÚ 2022 RIV CH eng J - Journal Article
Hosová, K. - Pinc, Jan - Školáková, Andrea - Bartůněk, V. - Veřtát, Petr - Školáková, T. - Průša, F. - Vojtěch, D. - Čapek, Jaroslav
Influence of ceramic particles character on resulted properties of zinc-hydroxyapatite/monetite composites.
Metals. Roč. 11, č. 3 (2021), č. článku 499. E-ISSN 2075-4701
R&D Projects: GA ČR(CZ) GA18-06110S; GA MŠMT(CZ) EF16_019/0000760; GA MŠMT LM2018110
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : biodegradable material * zinc * hydroxyapatite * monetite * metal-matrix composites
OECD category: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
Impact factor: 2.695, year: 2021
Method of publishing: Open access

Zinc and its alloys seem to be promising candidates for biodegradable applications. Those materials are often modified by other elements or compounds in order to enhance their properties. The combination of zinc and apatites is challenging for several reasons. However, the advantages connected with the biological aspects suggest the need for further research into such materials. In this study, three zinc-based composites with 4 and 8 wt.% of nanohydroxyapatite or nanomonetite (Zn-4MO, Zn-4HA, Zn-8HA) were prepared by sintering and subsequent extrusion. Materials prepared in this way were characterized from the microstructural, mechanical and corrosion point of view. The obtained results showed a significant influence of particle character (amount and morphology) on the strength and ductility of the prepared materials. In case of Zn-4MO, the presence of monetite significantly increased the ductility compared with the other materials. In addition, the increment of the degradation rate caused by the presence of monetite was observed as well. All obtained results pointed out to significant advantages of monetite for the preparation of Zn-apatite composites compared with hydroxyapatite.
Permanent Link: http://hdl.handle.net/11104/0320371