A. A. Kotyakov, A. Yu. Fedotov, N. V. Petrakova, V. S. Komlev
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Formation of Octacalcium Phosphate Coating on the Surface of β-Tricalcium Phosphate Ceramics
This work is aimed at developing a method for forming an octacalcium phosphate (OCP, Ca8H2(PO4)6 · 5H2O) coating on the surface of β-tricalcium phosphate (TCP, Ca3(PO4)2 ) ceramics. Coatings were formed by immersing ceramic samples in buffer solutions with the main ionic composition of CH3COO– and Na+ under varying conditions (duration, pH value, and temperature). Crystallization of the OCP coating occurred sequentially by partial dissolution of the surface layers of TCP ceramics and crystallization of the intermediate phase of dicalcium phosphate dihydrate (DCPD, CaHPO4 · 2H2O). The effect of the buffer solution composition and the process conditions (duration, pH value, and temperature) on the phase composition, morphology, and thickness of the coatings was studied.
期刊介绍：
Glass and Ceramics reports on advances in basic and applied research and plant production techniques in glass and ceramics. The journal''s broad coverage includes developments in the areas of silicate chemistry, mineralogy and metallurgy, crystal chemistry, solid state reactions, raw materials, phase equilibria, reaction kinetics, physicochemical analysis, physics of dielectrics, and refractories, among others.
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