Abstract
Hydroxyapatite (HA) thin coating has been coated on titanium substrates by pulsed laser deposition (PLD). Structural and morphological studies by transmission electron microscopy (TEM) and X-ray diffraction (XRD) were performed. The HA film is polycrystalline and irregular with a range size of particulates from 100 nm to 1 μm. Adhesion of the HA films to the Ti substrates was excellent as observed by cross-scanning electron microscopy (X-SEM) and transmission electron microscopy (XTEM). The residual stresses state determined on uncoated Ti substrates was compressive. After deposition of thin PLD HA on titanium substrates at 400°C the residual stress state was in a very low tensile state.
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