Zirconia-toughened hydroxyapatite ceramic obtained by wet sintering

被引：43

作者：

Delgado, JA

Morejón, L

Martínez, S ^{[1
]}

Ginebra, MP

Carlsson, N

Fernández, E

Planell, JA

Clavaguera-Mora, MT

Rodríguez-Viejo, J

机构：

[1] Univ Barcelona, Fac Geol, Dept Cristallog Mineral, E-08028 Barcelona, Spain

[2] Univ Barcelona, Fac Geol, Dipartimento Minerals, E-08028 Barcelona, Spain

[3] Univ Politecn Catalunya, Dept Mat Sci & Met Engn, CREB, E-08028 Barcelona, Spain

[4] Univ Autonoma Barcelona, Dept Fis, Grp Fis Mat 1, E-08193 Barcelona, Spain

[5] Univ Habana, Ctr Biomat, Ciudad Habana 10400, Cuba

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE | 1999年 / 10卷 / 12期

关键词：

D O I：

10.1023/A:1008923121172

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A toughened hydroxyapatite (HA) ceramic has been obtained through the incorporation of magnesia partially stabilized zirconia (Mg-PSZ) under uniaxial pressing and sintering in wet oxygen at 1250 degrees C for 4 h. The powder X-ray diffraction (XRD) patterns and infrared spectra (FT-IR) show that HA is the only calcium phosphate phase present. The composite (MgPSZ-HA) has a density of 94% the theoretical value. The bending strength and the fracture toughness are around 50% higher for Mg-PSZ reinforced than for HA. The grain size and the fracture surface were studied by scanning electron microscopy (SEM). The influence of the Mg-PSZ particles on the fracture mechanism of the HA ceramic is discussed. (C) 1999 Kluwer Academic Publishers.

引用

页码：715 / 719

页数：5

共 18 条

[1] Monoclinic phase measurement in Mg-PSZ using X-ray diffraction [J].