Number of the records: 1
Increasing Fatigue Endurance of Hydroxyapatite and Rutile Plasma Sprayed Biocomponents by Controlling Deposition In-Flight Properties
- 1.0504988 - ÚFP 2020 RIV US eng J - Journal Article
Čížek, Jan - Kovářík, O. - Šiška, Filip - Bensch, J. - Čupera, J. - Matějková, M. - Siegl, J. - Chráska, Tomáš - Khor, K.A.
Increasing Fatigue Endurance of Hydroxyapatite and Rutile Plasma Sprayed Biocomponents by Controlling Deposition In-Flight Properties.
ACS BIOMATERIALS SCIENCE & ENGINEERING. Roč. 5, č. 4 (2019), s. 1703-1714. ISSN 2373-9878. E-ISSN 2373-9878
R&D Projects: GA ČR GB14-36566G
Grant - others:Ministerstvo průmyslu a obchodu - GA MPO(CZ) CZ.02.1.01/0.0/0.0/16_019/0000778
Institutional support: RVO:61389021 ; RVO:68081723
Keywords : atmospheric plasma spray * fatigue testing * ha * in situ PIV * titania
OECD category: Materials engineering; Materials engineering (UFM-A)
Impact factor: 4.152, year: 2019
Method of publishing: Limited access
https://pubs.acs.org/doi/10.1021/acsbiomaterials.8b01545
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.
Permanent Link: http://hdl.handle.net/11104/0296518
File Download Size Commentary Version Access 2019 Cizek - Increasing fatigue endurance of hydroxyapatite and rutile plasma sprayed biocomponents by controlling deposition in-flight properties.pdf 8 4.3 MB Author’s postprint require nas clanek s finalnim strankovanim 10.1007_s11665-018-3622-1.pdf 11 2.9 MB Publisher’s postprint require
Number of the records: 1