Composite Coatings Based on Low-Temperature Calcium Phosphates for Intraosseous Implants

Abstract

A method for obtaining apatite crystallization precursors via chemical transformation of plasma coatings based on α-tricalcium phosphate (α-TCP) into dicalcium phosphate dihydrate (DCPDH) with subsequent hydrolysis into octacalcium phosphate (OCP) is studied. X-ray diffraction (XRD) phase analysis, IR spectroscopy, and scanning electron microscopy (SEM) techniques are used for studying the phase composition and microstructure of the experimentally obtained samples depending on the process conditions. The approach described in this paper makes it possible to obtain two-phase calcium phosphates with different ratios between DCPDH-OCP and hydroxyapatite (HA).