COMPOSITE MATERIAL BASED ON FLUOROHYDROXYAPATITE AND PARTIALLY STABILISED ZIRCONIUM DIOXIDE FOR BONE DEFECT REPLACEMENT

摘要

FIELD: medicine.;SUBSTANCE: invention relates to by bioceramic materials intended for production of bone implants and/or defect replacement in various bone pathologies. Technical result is increased strength of materials in a system of 40-60 wt% fluorohydroxyapatite - 40-60 wt% of zirconium dioxide, containing 2 to 5 wt% of sintering additive. As a result of using said additive, sintering was carried out at low temperatures 1300-1330°C, which enabled to preserve initial phase composition and production of composite material with high mechanical properties: flexural strength not less than 300 MPa and fracture strength not less than 4 MPa*m^1/2.;EFFECT: high strength of composite materials makes them applicable for making implants, capable of withstanding physiological load in body.;1 cl, 1 ex, 1 tbl