Interaction of components of the composite hydroxyapatite–basalt scales with biological media

Abstract

Interaction of the components of composite systems of hydroxуapatite–basalt scale at their different ratios with biological media, which imitates the media of living organism, is investigated. As established, the interaction intensity depends on the powder system activation temperature, their phase composition, as well as on the chemical composition of reaction media. The intensity increases with decreasing the activation temperature. All the investigated systems interact with Ringer–Locke solution and blood plasma most intensivly. The highest physicochemical stability for all the components contained in the hydroxуapatite–basalt scale composite system in biological media is detected for the systems with 5 and 10% of basalt scale at activation temperatures of 900 and 1200 ◦C. Thus, the hydroxуapatite + 10% basalt scale, 900 ◦C, composite system is the most perspective material for intraosteal reconstruction surgery in view of their strength characteristics, namely the similarity to natural bone (0.86-GPa Vickers hardness and 23.7-GPa elastic modulus).