Synthesis and physicochemical investigation of calcium silicate hydrate with different stoichiometric composition
Year: 2019
Type: conference-paper
Abstract: Calcium silicates are considered as promising components of materials for hard tissue repair. The main attention is paid to the crystalline forms of these substances. In the present study, a series of amorphous calcium silicate hydrates with molar coefficient Ca/Si = 0.65 - 1.45 was prepared by precipitation in aqueous solutions. The samples were analysed using X-ray diffraction, FT-IR spectroscopy, SEM, TGA, BET. The dynamics of calcium silicate hydrates dissolution in Tris-buffer solution with pH = 7.40, corresponding to the acidity of human plasma, was compared with wollastonite and apatite. It is shown that calcium silicate hydrates actively dissolve in a slightly alkaline medium, ensuring the appearance of calcium ions in the solution in amounts that exceed the cation concentrations in systems with β-CaSiO 3 и Ca 10 (PO 4 ) 6 (OH) 2 .
Authors: A P Solonenko, A I Blesman, D A Polonyankin
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2943022650