Calcium Phosphate Ceramic in the System Ca(PO3)2–Ca2P2O7 Based on Powder Mixtures Containing Calcium Hydrophosphate

Abstract

Powder mixtures prepared by mechanical activation from synthetic hydrated acidic calcium phosphates Ca(H₂PO₄)₂ · H₂O and CaHPO₄ · 2H₂O were used to obtain resorbable ceramic in the system Ca (PO₃)₂–Ca₂P₂O₇. The phase composition of the ceramic after firing in the interval 700 – 1000°C was represented by biocompatible and bioresorbable phases: calcium polyphosphate Ca(PO₃)₂, tromelite Ca₄P₆O₁₉, and calcium pyrophosphate Ca₂P₂O₇. The obtained materials can be used to fabricate resorbable implants for regenerative treatment of defects of bone tissue.