Number of the records: 1
Increasing Fatigue Endurance of Hydroxyapatite and Rutile Plasma Sprayed Biocomponents by Controlling Deposition In-Flight Properties
- 1.
SYSNO ASEP 0504988 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Increasing Fatigue Endurance of Hydroxyapatite and Rutile Plasma Sprayed Biocomponents by Controlling Deposition In-Flight Properties Author(s) Čížek, Jan (UFP-V) ORCID
Kovářík, O. (CZ)
Šiška, Filip (UFM-A) RID, ORCID
Bensch, J. (CZ)
Čupera, J. (CZ)
Matějková, M. (CZ)
Siegl, J. (CZ)
Chráska, Tomáš (UFP-V) RID, ORCID
Khor, K.A. (SG)Number of authors 9 Source Title ACS BIOMATERIALS SCIENCE & ENGINEERING. - : American Chemical Society - ISSN 2373-9878
Roč. 5, č. 4 (2019), s. 1703-1714Number of pages 12 s. Language eng - English Country US - United States Keywords atmospheric plasma spray ; fatigue testing ; ha ; in situ PIV ; titania Subject RIV JG - Metallurgy OECD category Materials engineering Subject RIV - cooperation Institute of Physics of Materials - Metallurgy R&D Projects GB14-36566G GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UFP-V - RVO:61389021 ; UFM-A - RVO:68081723 UT WOS 000464241400006 EID SCOPUS 85064134647 DOI 10.1021/acsbiomaterials.8b01545 Annotation Three sets of hydroxyapatite and rutile-TiO 2 coatings were plasma sprayed onto metallic substrates. The spray parameters of the sets were modified so as to obtain different in-flight temperatures and velocities of the powder particles within the plasma jet (ranging from 1778 to 2385 K and 128 to 199 m s1 , respectively). Fatigue endurance of the coated specimens was then tested. The samples were subjected to a symmetric cyclical bend loading, and the crack propagation was monitored until it reached a predefined cross-section damage. The influence of the coating deposition was evaluated with respect to a noncoated reference set and the in-flight characteristics. Attributed to favorable residual stress development in the sprayed samples, it was found that the deposition of the coatings generally led to a prolongation of the fatigue lives. The highest lifetime increase (up to 46% as compared to the noncoated set) was recorded for the coatings deposited under high in-flight temperature and velocity. Importantly, this was achieved without significantly compromising the microstructure or phase composition of the deposited HA and TiO 2 layers. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2020 Electronic address https://pubs.acs.org/doi/10.1021/acsbiomaterials.8b01545
Number of the records: 1