Publication detail

Strength and fracture mechanism of iron reinforced tricalcium phosphate cermet fabricated by spark plasma sintering

TKACHENKO, S. HORYNOVÁ, M. CASAS LUNA, M. DÍAZ DE LA TORRE, S. DVOŘÁK, K. ČELKO, L. KAISER, J. MONTUFAR JIMENEZ, E.

Original Title

Strength and fracture mechanism of iron reinforced tricalcium phosphate cermet fabricated by spark plasma sintering

Type

journal article in Web of Science

Language

English

Original Abstract

The present work studies the microstructure and mechanical performance of tricalcium phosphate (TCP) based cermet toughened by iron particles. A novelty arises by the employment of spark plasma sintering for fabrication of the cermet. Results showed partial transformation of initial alpha TCP matrix to beta phase and the absence of oxidation of iron particles, as well as a lack of chemical reaction between TCP and iron components during sintering. The values of compressive and tensile strength of TCP/Fe cermet were 3.2 and 2.5 times, respectively, greater than those of monolithic TCP. Fracture analysis revealed the simultaneous action of crack-bridging and crack-deflection microstructural toughening mechanisms under compression. In contrast, under tension the reinforcing mechanism was only crack-bridging, being the reason for smaller increment of strength. Elastic properties of the cermet better matched values reported for human cortical bone. Thereby the new TCP/Fe cermet has potential for eventual use as a material for bone fractures fixation under load-bearing conditions.

Keywords

Ceramic-matrix composite; Tricalcium phosphate; Spark plasma sintering; Microstructural toughening; Fractography

Authors

TKACHENKO, S.; HORYNOVÁ, M.; CASAS LUNA, M.; DÍAZ DE LA TORRE, S.; DVOŘÁK, K.; ČELKO, L.; KAISER, J.; MONTUFAR JIMENEZ, E.

Released

1. 5. 2018

Publisher

Elsevier

Location

Nizozemsko

ISBN

1751-6161

Periodical

Journal of the mechanical behavior of biomedical materials

Year of study

1

Number

81

State

Kingdom of the Netherlands

Pages from

16

Pages to

25

Pages count

10

URL

https://doi.org/10.1016/j.jmbbm.2018.02.016

Full text in the Digital Library

http://hdl.handle.net/11012/173198

BibTex

@article{BUT149154,
  author="Serhii {Tkachenko} and Miroslava {Horynová} and Mariano {Casas Luna} and Sebastian {Díaz de la Torre} and Karel {Dvořák} and Ladislav {Čelko} and Jozef {Kaiser} and Edgar Benjamin {Montufar Jimenez}",
  title="Strength and fracture mechanism of iron reinforced tricalcium phosphate cermet fabricated by spark plasma sintering",
  journal="Journal of the mechanical behavior of biomedical materials",
  year="2018",
  volume="1",
  number="81",
  pages="16--25",
  doi="10.1016/j.jmbbm.2018.02.016",
  issn="1751-6161",
  url="https://doi.org/10.1016/j.jmbbm.2018.02.016"
}