Název:
Microstructure and mechanical properties of the potentially biodegradable ternary system Zn-Mg0. 8-Ca0.2
Autoři:
Pinc, Jan ; Čapek, Jaroslav ; Kubásek, J. ; Veřtát, Petr ; Hosová, K. Typ dokumentu: Příspěvky z konference Konference/Akce: International Conference on Materials Structure and Micromechanics of Fracture, MSMF9 /9./, Brno (CZ), 20190626
Rok:
2019
Jazyk:
eng
Abstrakt: Zinc and zinc alloys exhibit suitable corrosion properties for biodegradable implants. Insufficient mechanical properties (for some applications) or low biocompatible Zn2+ concentrations can be modified by the alloying by essential elements like magnesium, calcium or strontium. The alloying elements also enhance the biocompatibility of zinc due to a decrease of Zn2+ release which could be toxic in a concentration exceeding 100 µM. In this study, the microstructure and hardness of a potentially biodegradable alloy ZnMg0.8Ca0.2 were observed in relation to different cooling rates. It was found that zinc dendrites, Mg2Zn11 (MgZn2) and CaZn13 phases occur in the material structure. The micro-hardness measurements revealed constant hardness of the particular phases, however, the macro-harness slightly decreased with the decreasing cooling rate due to changes in phase sizes and distribution.
Klíčová slova:
biodegradable materia; hardness; microstructure; ternary system; zinc Číslo projektu: CZ.02.1.01/0.0/0.0/16_019/0000760, EF16_019/0000760, GA18-06110S (CEP) Poskytovatel projektu: OP VVV - SOLID21, GA MŠk, GA ČR Zdrojový dokument: Procedia Structural Integrity, ISSN 2452-3216
Instituce: Fyzikální ústav AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0314441