TY JOUR TI INFLUENCE OF THE CRYSTAL-CHEMICAL STRUCTURE IN CALCIUM-PHOSPHATE NANOCOMPOSITE ON THE FORMATION OF ELECTROSURFACE AND ACID-BASIC PROPERTIES KW calcium phosphate nanocomposite KW hydroxyapatite KW silicate anions KW carbonate ions KW active centers KW zeta -potential JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Trubitsyn, M.A. AU Hoang, V.. AU Furda, L.V. PY 2021 IS 6 PB Belgorod State Technological University named after V.G. Shukhov