Mechanical behaviour of new zirconia-hydroxyapatite ceramic materials

J. A. Delgado, S. Martínez, M. P. Ginebra, L. Morejón, N. Carlsson, E. Fernández, J. A. Planell, M. T. Clavaguera-Mora, J. Rodríguez-Viejo

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

In this work a new zirconia-hydroxyapatite ceramic material was obtained by uniaxial pressing and sintering in humid environment. The powder X-ray diffraction (XRD) patterns and infrared spectra (FT-IR) showed that the hydroxyapatite (HA) is the only calcium phosphate phase present. The fracture toughness for HA with 20 wt.% of magnesia partially stabilized zirconia (Mg-PSZ) was around 2.5 times higher than those obtained for HA pure, also the highest value of bending strength (160 MPa) was obtained for material reinforced with Mg-PSZ. For the MgPSZ-HA (20%) the fracture mechanism seems to be less transgranular.
Original languageEnglish
Pages (from-to)151-154
JournalKey Engineering Materials
Volume192-195
Publication statusPublished - 1 Jan 2001

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