Publication detail

Spark plasma sintering of load-bearing iron-carbon nanotube-tricalcium phosphate CerMets for orthopaedic applications

MONTUFAR JIMENEZ, E. HORYNOVÁ, M. CASAS LUNA, M. DIAZ-DE-LA-TORRE, S. ČELKO, L. KLAKURKOVÁ, L. SPOTZ, Z. DIÉGUEZ-TREJO, G. FOHLEROVÁ, Z. DVOŘÁK, K. ZIKMUND, T. KAISER, J.

Original Title

Spark plasma sintering of load-bearing iron-carbon nanotube-tricalcium phosphate CerMets for orthopaedic applications

Type

journal article in Web of Science

Language

English

Original Abstract

Recently, ceramic-metallic composite materials (CerMets) have been investigated for orthopaedic applications with promising results. This first generation of bio-CerMets combine the bioactivity of hydroxyapatite with the mechanical stability of titanium to fabricate bioactive, tough and biomechanically more biocompatible osteosynthetic devices. Nonetheless, these first CerMets are not biodegradable materials and a second surgery is required to remove the implant after bone healing. The present work aims to develop the next generation bio-CerMets, which are potential biodegradable materials. Process to produce the new biodegradable CerMet consisted of mixing powder of soluble and osteoconductive alpha tricalcium phosphate with biocompatible and biodegradable iron and consolidation through spark plasma sintering (SPS) method. The microstructure, composition and mechanical strength of the new CerMet were studied by metallography, X-ray diffraction and diametral tensile strength test, respectively. The results show that SPS produces CerMet with higher mechanical performance (120 MPa) than the ceramic component alone (29 MPa) and similar mechanical strength to the pure metallic component (129 MPa). Nonetheless, although that short sintering time (10 min) was used, partial transformation of the alpha tricalcium phosphate into its allotropic and slightly less soluble beta phase was observed. Cell adhesion test shows that osteoblasts are able to attach to the CerMet surface, presenting spread morphology regardless of the component of the material with which they are in contact. However, the degradation process restricted to the small volume of the cell culture well quickly reduces the osteoblast viability.

Keywords

biodegradable metal, spark plasma sintering, CerMet, osteosynthesis, diametral tensile strength, cell adhesion, bone

Authors

MONTUFAR JIMENEZ, E.; HORYNOVÁ, M.; CASAS LUNA, M.; DIAZ-DE-LA-TORRE, S.; ČELKO, L.; KLAKURKOVÁ, L.; SPOTZ, Z.; DIÉGUEZ-TREJO, G.; FOHLEROVÁ, Z.; DVOŘÁK, K.; ZIKMUND, T.; KAISER, J.

Released

1. 4. 2016

Publisher

Springer US

ISBN

1047-4838

Periodical

JOM

Year of study

68

Number

4

State

United States of America

Pages from

1134

Pages to

1142

Pages count

9

URL

http://link.springer.com/article/10.1007/s11837-015-1806-9

BibTex

@article{BUT119678,
  author="MONTUFAR JIMENEZ, E. and HORYNOVÁ, M. and CASAS LUNA, M. and DIAZ-DE-LA-TORRE, S. and ČELKO, L. and KLAKURKOVÁ, L. and SPOTZ, Z. and DIÉGUEZ-TREJO, G. and FOHLEROVÁ, Z. and DVOŘÁK, K. and ZIKMUND, T. and KAISER, J.",
  title="Spark plasma sintering of load-bearing iron-carbon nanotube-tricalcium phosphate CerMets for orthopaedic applications",
  journal="JOM",
  year="2016",
  volume="68",
  number="4",
  pages="1134--1142",
  doi="10.1007/s11837-015-1806-9",
  issn="1047-4838",
  url="http://link.springer.com/article/10.1007/s11837-015-1806-9"
}