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Structure, energetics and bioactivity of silicon oxycarbide-based amorphous ceramics with highly connected networks

Ionescu, Emanuel ; Sen, Sabyasachi ; Mera, Gabriela ; Navrotsky, Alexandra :
Structure, energetics and bioactivity of silicon oxycarbide-based amorphous ceramics with highly connected networks.
[Online-Edition: https://doi.org/10.1016/j.jeurceramsoc.2017.10.002]
In: Journal of the European Ceramic Society, 38 (4) S. 1311-1319. ISSN 09552219
[Artikel] , (2018)

Offizielle URL: https://doi.org/10.1016/j.jeurceramsoc.2017.10.002

Kurzbeschreibung (Abstract)

Mg and Ca substituted silicon oxycarbides are investigated with respect to their network architecture, enthalpy of formation and bioactivity. The synthesized materials have highly connected structural network with an open architecture and a minor but critical fraction of depolymerized Q-species. This combination of structural features allows for providing bioactivity at the same time with enhanced thermo-mechanical robustness and crystallization resistance. It is argued that silicon oxycarbide amorphous ceramics may consequently serve as model compounds for developing rational design concepts for advanced bioactive glasses.

Typ des Eintrags: Artikel
Erschienen: 2018
Autor(en): Ionescu, Emanuel ; Sen, Sabyasachi ; Mera, Gabriela ; Navrotsky, Alexandra
Titel: Structure, energetics and bioactivity of silicon oxycarbide-based amorphous ceramics with highly connected networks
Sprache: Englisch
Kurzbeschreibung (Abstract):

Mg and Ca substituted silicon oxycarbides are investigated with respect to their network architecture, enthalpy of formation and bioactivity. The synthesized materials have highly connected structural network with an open architecture and a minor but critical fraction of depolymerized Q-species. This combination of structural features allows for providing bioactivity at the same time with enhanced thermo-mechanical robustness and crystallization resistance. It is argued that silicon oxycarbide amorphous ceramics may consequently serve as model compounds for developing rational design concepts for advanced bioactive glasses.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of the European Ceramic Society
Band: 38
(Heft-)Nummer: 4
Verlag: Elsevier Science Publishing
Freie Schlagworte: Bioactive glasses, Polymer-derived ceramics, Silicon oxycarbides, Network architecture, Network connectivity
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe
Hinterlegungsdatum: 17 Dez 2018 15:55
DOI: 10.1016/j.jeurceramsoc.2017.10.002
Offizielle URL: https://doi.org/10.1016/j.jeurceramsoc.2017.10.002
Sponsoren: German Science Foundation (DFG, Bonn, Germany) , Grant Number IO 64/9-1 ,, Alexander von Humboldt Foundation (project "Development and characterization of new family polymer-derived glasses (PDGs) and glass-organic composites with high bioactivity for bone tissue repair"), GM acknowledges financial support from Darmstadt University of Technology (re-entry research fellowship)., The work at UC Davis was supported by the Deep Carbon Observatory of the Alfred P. Sloan Foundation.
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