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Characterization of microstructure and phase distribution of sintered multiphasic calcium phosphate bioceramics
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SYSNO ASEP 0524224 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Characterization of microstructure and phase distribution of sintered multiphasic calcium phosphate bioceramics Author(s) Šťastný, P. (CZ)
Vacek, Petr (UFM-A) ORCID, RID
Trunec, M. (CZ)Number of authors 3 Source Title Ceramics International. - : Elsevier - ISSN 0272-8842
Roč. 46, č. 4 (2020), s. 5500-5504Number of pages 5 s. Language eng - English Country GB - United Kingdom Keywords beta-tricalcium phosphate ; gold standard ; bone ; degradation ; resorption ; scaffolds ; porosity ; Multiphasic calcium phosphates ; Electron backscatter diffraction ; Phase analysis ; Grain structure Subject RIV JH - Ceramics, Fire-Resistant Materials and Glass OECD category Ceramics R&D Projects LQ1601 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UFM-A - RVO:68081723 UT WOS 000512219600178 EID SCOPUS 85075340380 DOI 10.1016/j.ceramint.2019.10.300 Annotation The microstructures of sintered multiphasic calcium phosphate (CaP) ceramics with three initial hydroxyapatite to tricalcium phosphate ratios ranging from 1:4 to 4:1 were characterized at the grain scale. The grain structure, phase composition and spatial phase distribution in sintered calcium phosphate bioceramics were examined by the electron backscatter diffraction (EBSD) supplemented with X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. EBSD proved to be a powerful analytical tool for characterizing.grain and phase distribution of CaP bioceramics. The EBSD grain maps connected with the EBSD phase analysis successfully described the phase distribution and grain microstructure of the sintered ceramics in detail. The change in the overall phase composition after sintering was explained by a chemical reaction between a phase impurity of TCP powder and HA. These results can lead to a better understanding of the mechanical and biodegradation properties of CaP bioceramics in both in-vivo and in-vitro conditions. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2021 Electronic address https://doi.org/10.1016/j.ceramint.2019.10.300
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