Number of the records: 1
Speedy bioceramics: Rapid densification of tricalcium phosphate by ultrafast high-temperature sintering
- 1.
SYSNO ASEP 0543962 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Speedy bioceramics: Rapid densification of tricalcium phosphate by ultrafast high-temperature sintering Author(s) Biesuz, Mattia (UFP-V)
Galotta, A. (IT)
Motta, A. (IT)
Kermani, M. (CN)
Grasso, S. (CN)
Vontorová, J. (CZ)
Tyrpekl, V. (CZ)
Vilémová, Monika (UFP-V) RID, ORCID
Sglavo, V. M. (IT)Number of authors 9 Article number 112246 Source Title Materials Science & Engineering C-Materials for Biological Applications. - : Elsevier - ISSN 0928-4931
Roč. 127, August (2021)Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords Bioceramics ; Mechanochemical synthesis ; tcp ; uhs ; Ultra-high temperature sintering Subject RIV JP - Industrial Processing OECD category Materials engineering R&D Projects EF18_053/0016925 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UFP-V - RVO:61389021 UT WOS 000672595100002 EID SCOPUS 85107930454 DOI 10.1016/j.msec.2021.112246 Annotation Due to unique osteogenic properties, tricalcium phosphate (TCP) has gained relevance in the field of bone repair. The development of novel and rapid sintering routes is of particular interest since TCP undergoes to high-temperature phase transitions and is widely employed in osteoconductive coatings on thermally-sensitive metal substrates. In the present work, TCP bioceramics was innovatively obtained by Ultrafast High-temperature Sintering (UHS). Ca-deficient hydroxyapatite nano-powder produced by mechanochemical synthesis of mussel shell-derived calcium carbonate was used to prepare the green samples by uniaxial pressing. These were introduced within a graphite felt which was rapidly heated by an electrical current flow, reaching heating rates exceeding 1200 °C min−1. Dense (> 93%) ceramics were manufactured in less than 3 min using currents between 25 and 30 A. Both β and α-TCP were detected in the sintered components with proportions depending on the applied current. Preliminary tests confirmed that the artifacts do not possess cytotoxic effects and possess mechanical properties similar to conventionally sintered materials. The overall results prove the applicability of UHS to bioceramics paving the way to new rapid processing routes for biomedical components. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2022 Electronic address https://www.sciencedirect.com/science/article/pii/S0928493121003866?via%3Dihub
Number of the records: 1