Publication detail

Synthesis of Ca,Y-zirconia/hydroxyapatite nanoparticles and composites

ČÁSTKOVÁ, K. HADRABA, H. MATOUŠEK, A. ROUPCOVÁ, P. CHLUP, Z. NOVOTNÁ, L. CIHLÁŘ, J.

Original Title

Type

journal article in Web of Science

Language

English

Original Abstract

Zirconia/hydroxyapatite composites were prepared by mixing hydroxyapatite (HA) and ZrO2nanoparti-cles were prepared by precipitation synthesis. Nanoparticle composites with microporous structure andwith a grain size of up to 10 m and a density of 94% were obtained. Due to the diffusion of Ca ions fromHA to ZrO2, phase transformations took place in the composites during sintering. HA decomposed intoa mixture of HA and calcium phosphates and simultaneously calcium zirconate was formed. Hardnessand modulus of elasticity decreased with increasing porosity of the ZrO2/HA composites. The Ca-ZrO2/HAcomposites showed a higher bioactivity in simulated body fluid (SBF) testing than those of Y-ZrO2/HA.The osteoblast cells adhered more extensively to the Ca-ZrO2/HA composites than to the Y-ZrO2/HA ones.The effect of the microstructure and the chemical composition has the mechanical and biological prop-erties could be used to optimize the mechanical and biological acceptability of the composites in bonerepairs.

Keywords

Zirconia, Hydroxyapatite, Composite, Bioactivity, Mechanical properties

Authors

ČÁSTKOVÁ, K.; HADRABA, H.; MATOUŠEK, A.; ROUPCOVÁ, P.; CHLUP, Z.; NOVOTNÁ, L.; CIHLÁŘ, J.

Released

1. 9. 2016

ISBN

0955-2219

Periodical

Journal of the European Ceramic Society

Year of study

Number

State

United Kingdom of Great Britain and Northern Ireland

Pages from

2903

Pages to

2912

Pages count

BibTex

@article{BUT121280,
  author="Klára {Částková} and Hynek {Hadraba} and Aleš {Matoušek} and Pavla {Roupcová} and Zdeněk {Chlup} and Lenka {Novotná} and Jaroslav {Cihlář}",
  title="Synthesis of Ca,Y-zirconia/hydroxyapatite nanoparticles and composites",
  journal="Journal of the European Ceramic Society",
  year="2016",
  volume="36",
  number="12",
  pages="2903--2912",
  doi="10.1016/j.jeurceramsoc.2015.12.045",
  issn="0955-2219"
}