Publication detail

Increasing Fatigue Endurance of Hydroxyapatite and Rutile Plasma Sprayed Biocomponents by Controlling Deposition In-Flight Properties

ČÍŽEK, J. KOVÁŘÍK, O. ŠIŠKA, F. BENSCH, J. ČUPERA, J. MATĚJKOVÁ, M. SIEGL, J. CHRÁSKA, T. KHOR, K.

Original Title

Increasing Fatigue Endurance of Hydroxyapatite and Rutile Plasma Sprayed Biocomponents by Controlling Deposition In-Flight Properties

Type

journal article in Web of Science

Language

English

Original Abstract

Three sets of hydroxyapatite and rutile-TiO2 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 s−1 , 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 TiO2 layers.

Keywords

atmospheric plasma spray, in situ PIV, fatigue testing, HA, titania

Authors

ČÍŽEK, J.; KOVÁŘÍK, O.; ŠIŠKA, F.; BENSCH, J.; ČUPERA, J.; MATĚJKOVÁ, M.; SIEGL, J.; CHRÁSKA, T.; KHOR, K.

Released

12. 3. 2019

ISBN

2373-9878

Periodical

ACS Biomaterial Science and Engineering

Year of study

5

Number

4

State

United States of America

Pages from

1703

Pages to

1714

Pages count

12

URL

https://pubs.acs.org/doi/10.1021/acsbiomaterials.8b01545

BibTex

@article{BUT159435,
  author="Jan {Čížek} and Ondřej {Kovářík} and Filip {Šiška} and Jan {Bensch} and Jan {Čupera} and Michaela {Matějková} and Jan {Siegl} and Tomáš {Chráska} and Khiam Aik {Khor}",
  title="Increasing Fatigue Endurance of Hydroxyapatite and Rutile Plasma
Sprayed Biocomponents by Controlling Deposition In-Flight
Properties",
  journal="ACS Biomaterial Science and Engineering",
  year="2019",
  volume="5",
  number="4",
  pages="1703--1714",
  doi="10.1021/acsbiomaterials.8b01545",
  issn="2373-9878",
  url="https://pubs.acs.org/doi/10.1021/acsbiomaterials.8b01545"
}