Influence of processing on the microstructure and the mechanical properties of Zn/HA8 wt.% biodegradable composite

0519318 - FZÚ 2020 RIV CZ eng J - Článek v odborném periodiku
Pinc, Jan - Miklášová, E. - Průša, F. - Čapek, Jaroslav - Drahokoupil, Jan - Vojtěch, D.
Influence of processing on the microstructure and the mechanical properties of Zn/HA8 wt.% biodegradable composite.
Manufacturing Technology. Roč. 19, č. 5 (2019), s. 836-841. ISSN 1213-2489
Grant CEP: GA ČR(CZ) GA18-06110S
Institucionální podpora: RVO:68378271
Klíčová slova: zinc * hydroxyapatite * biodegradable composites * ball milling * spark plasma sintering
Obor OECD: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
Způsob publikování: Omezený přístup
https://doi.org/10.21062/ujep/381.2019/a/1213-2489/MT/19/5/836

Zinc-based materials show large potential to become biodegradable materials with ideal corrosion behavior in the body environment. In this study, a zinc composite containing 8 wt. % of hydroxyapatite (HA) was prepared by spark plasma sintering (SPS) and characterized from a point of view of the microstructural and mechanical prop-erties. The influence of pre-processing (milling) of the powders on the microstructure after the sintering was stud-ied. The materials prepared by the milling and subsequent sintering showed insufficient cohesion due to the wrap-ping of Zn by HA particles and possible oxidation of zinc particles. Compressive and flexural tests of sintered materials prepared without any pre-processing confirmed the role of hydroxyapatite as a defect in the Zn/HA8_SPS structure. The results of the hardness measurement suggest that the HA does not affect the behavior of the zinc matrix.
Trvalý link: http://hdl.handle.net/11104/0304324