Properties of hydroxyapatite ceramic coatings

What is it about?

Plasma electrolytic oxidation (PEO) was used to prepare hydroxyapatite ceramics on titanium alloy implant. We have shown for the first time the failure modes of the PEO coatings. This paper also shows the feasibility of depositing hydroxyapatite in a solitary sodium phosphate. This was previously thought impossible due to the difficulty in migrating cationic ions to the anodic surface. A simple growth mechanism is proposed for the observed phenomenon. Olympus stream microimaging software was used to observe the relationship between the porosity of the coatings and the particles concentration

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Why is it important?

The characteristic behaviour of the oxide film before and after incorporation of hydroxyapatite ceramics was established in terms of structural, mechanical, adhesion, scratch hardness, and the entrance mechanism of the hydroxyapatite in the anodic film. The mechanical properties of the coatings are influenced more by the content of hydroxyapatite ceramics.

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