Soft mechanochemical synthesis and thermal stability of hydroxyapatites with different types of substitution

The feasibility of soft mechanochemical synthesis was studied here for hydroxyapatite with various types substitution. It shown that this method allows obtaining hydroxyapatites substituted copper or iron cations and cosubstituted zinc silicate groups. Thermal stability the synthesized samples evaluated. found to preserve phase homogeneity material, temperature during preparation ceramic products coatings should not exceed 600–800 °C. An exception is where a hydroxyl group expected be replaced by cation at degree substitution x = 0.5. For sample, heat treatment can increased 1100–1200 °C because return crystal lattice these temperatures, material becomes single-phase.