Microstructure and Properties of the Composites: Hydroxyapatite With Addition of Zirconium Phase

The group of bioceramics include hydroxyapatites, which, due to their specific properties, are widely used in biotechnology. These compounds exist in skeleton of human and animal body. A range of advantages of implants which contain, among other things, hydroxyapatites, results also from the level of their porosity. Recent trends that focus on improvement in poor strength properties of HAp coatings include introduction of solid solution of Y₂O₃ in ZrO₂ [1–7]. It seems to be essential to determine the resulting structural and strength properties in the aspect of further application of composites based on hydroxyapatite with addition of zirconium phase. The investigations involved ceramic composites based on HAp with different amounts of the phase modified with ZrO₂ yttrium dioxide.