Journal Article

DESY-2014-02149

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Catalysis, nanostructure and macroscopic property triangle in bioactive calcium-containing ceramic systems

Meiszterics, A. (Corresponding author)Extern* ; Havancsák, K. ; Sinkó, K. (Corresponding Author)Extern*

2013
Elsevier Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.msec.2012.12.038  doi:10.3204/DESY-2014-02149

Abstract: Calcium silicate ceramics are intended for application as long-term implant materials. In the present work, attention was paid to understand the correlations between the nanostructure (aggregate size, crystallinity, porosity) and the macroscopic properties (solubility in water and simulated body fluids, SBF; hardness) varying the chemical composition. Varying the catalyst (from a base to various acids) during the chemical synthesis was shown to significantly impact on the pore size, crystallinity and mechanical properties. The basic catalyst yields the ceramics with the highest mechanical strength. Ammonia used in 1.0 or 10.0 molar ratio results in bulk ceramics with parameters required for a biomedical application, good hardness (180–200 HV) and low solubility (1–3%) in water and in SBF. The fine porosity (~ 50 nm) and homogeneous amorphous structure induce good mechanical character.

Note: © Elsevier B.V.

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Contributing Institute(s):

1. DOOR-User (DOOR)

Research Program(s):

1. FS Beamline without reference (POF2-544) (POF2-544)

Experiment(s):

1. Unknown DESY Beamline

Appears in the scientific report 2013

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Database coverage:
; ; Current Contents - Social and Behavioral Sciences ; JCR ; SCOPUS ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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