СИНТЕЗ ТА ДОСЛІДЖЕННЯ КОМПОЗИТІВ ЛЕГОВАНИХ КАЛЬЦІЙ ФОСФАТІВ З ФЕРИТОМ МАГНІЮ

The work presents the investigation results of the features of composites formation based on modified calcium phosphates with magnesium ferrites at molar ratios Ca2+ : Na+ : Zn2+ : PO43-  : СО32- : Mg2+ : Fe3+ = 38,5 : 1,0 : 1,0 : (24-у) : у : х : 2х  (х = 2 and 15, у = 0 or 2) and heated at the temperatures 600 and 700 °С. It was found that increasing of magnesium and iron cations amount in the initial solution, which predicted an increase of ferrite content in the composition of composite material led to formation of modified biphasic calcium phosphates with the same amount of both phases based on Са10(РО4)6(ОН)2 and b-Са3(РО4)2. It is shown that the synthesized composites based on biphasic calcium phosphates with ferrite are characterized by activity towards partial dissolution in a model solution, which can be regulated by partial substitution of phosphate anion with carbonate in apatite-related phase. This is important for obtaining materials for controlled bone tissue regeneration.