Investigation of sintering features of ceramic materials based on hydroxyapatite and its substituted forms
E.A. Bogdanova1, I.A. Veretennikova2
1 Institute of Solid State Chemistry of the Ural Branch of RAS
2 Institute of Engineering Science of the Ural Branch of RAS
Abstract: Stoichiometric and fluorsubstituted hydroxyapatite powders with increased sintering activity (the initial compaction temperature is 600 °C) were synthesized by precipitation from solutions. Properties of synthesized powders and ceramics after firing were investigated. It is shown that the introduction of fluoride ions can thermally stabilize the apatite phase to a temperature of 1000 °C, increase the degree of dispersion and the specific surface area, and almost three times increase the microhardness of the material. Comparison of the particle size distribution in synthesized powders and the grain distribution in sintered ceramics confirmed that ceramics inherited the nanostructure of the original powders.
Keywords: hydroxyapatite, fluorsubstituted hydroxyapatite, sintering, bioceramics
- Ekaterina A. Bogdanova – Ph. D., Senior Researcher, Laboratory of Heterogeneous Processes, Institute of Solid State Chemistry of the Ural Branch of RAS
- Irina A. Veretennikova – Ph. D., Researcher, Laboratory of Material Micromechanics, Institute of Engineering Science of the Ural Branch of RAS
Bogdanova, E.A. Investigation of sintering features of ceramic materials based on hydroxyapatite and its substituted forms / E.A. Bogdanova, I.A. Veretennikova // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. – Tver: TSU, 2020. — I. 12. — P. 535-545. DOI: 10.26456/pcascnn/2020.12.535. (In Russian).
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