Development and Characterization of Hydroxyapatite-Alumina Biocomposites for Orthopedic Implants

Mohammed Es-Saddik; Said Laasri; Mohammed Taha; Abdelaziz Laghzizil; Abdelowahed Hajjaji; Elkebir Hlil

doi:10.4028/www.scientific.net/KEM.820.97

Paper Titles

Grain Shape Effect and the Viscoplastic Parameter on the Evolution of Isotropic and Kinematic Hardening of Metallic Materials under Cyclic Loading
p.48

Effect of Corrosive Environment Conditions on Austenitic Structure Reliability
p.60

Application of Principal Component Analysis (PCA) for the Choice of Parameters of a Micromechanical Model
p.75

Estimation of the Fatigue Curve of a Wire Rope at Different Scales
p.85

Development and Characterization of Hydroxyapatite-Alumina Biocomposites for Orthopedic Implants
p.97

Effect of Parameters on the Mechanical Behavior of Core Strands: Experimental, Numerical and Statistical Study
p.104

Simplified Micro-Mechanical Approach for Coated Viscoelastic Inclusion
p.118

Behaviour of Dense Assemblies of Disks and Ellipses - Study of Particle Shape Effect
p.128

Prediction of the Lifetime of the Chlorinated PVC Thermoplastic Material Subjected to Thermomechanical Tests - Tensile Test under the Influence of Temperature
p.137

HomeKey Engineering MaterialsKey Engineering Materials Vol. 820Development and Characterization of...

Development and Characterization of Hydroxyapatite-Alumina Biocomposites for Orthopedic Implants

Abstract:

Hydroxyapatite-Alumina composite powders, HAP-Al₂O₃, for biomedical applications were synthesized by neutralization method. Composites with different alumina content were prepared and calcined over the temperature range of 900-1300°C for 3 h. Effects of alumina content and calcination on the structural properties of powders were studied. The as-received powders and ceramics were characterized by various techniques (XRD, IR, SEM, TEM). Compressive strength of ceramics was determined using direct compressing. Results indicate that both crystallinity of the HAp-Al₂O₃ powders and the compressive strength increased with the temperature of calcination, but depending of the alumina content where the formation of β-TCP phase as secondary phase is detected after heat treatment. We notice that HAp-10Al₂O₃ offers the best mechanical strengths that can be improved by a high calcination temperature.