TECHNOLOGICAL, PHYSICAL AND CHEMICAL PROPERTIES OF LOW-SILICA GLASSES OF THE Na2O–CaO–ZnO–SiO2–P2O5 SYSTEM

TECHNOLOGICAL, PHYSICAL AND CHEMICAL PROPERTIES OF LOW-SILICA GLASSES OF THE Na2O–CaO–ZnO–SiO2–P2O5 SYSTEM

Authors

  • M. Dyadenko Belarusian State Technological University, Minsk, Republic of Belarus
  • I. Levitskii Belarusian State Technological University, Minsk, Republic of Belarus
  • A. Hlinskii Belarusian State Technological University, Minsk, Republic of Belarus

DOI:

https://doi.org/10.55956/BKKH4506

Keywords:

crystalline phase, density, tetrahedral grouping, microhardness, bond strength, co-ordination, temperature dependence of viscosity, bioactive glass, viscosity gradient

Abstract

The results of studying the effect of the Na2O/CaO ratio on phase separation, density, microhardness and temperature dependence of viscosity of experimental glasses of the Na2O–CaO–ZnO–SiO2–P2O5 system are presented. The results of the effect of the network interaction factor (NC) on the density of experimental glasses with different CaO/P2O5 content are presented. It is shown that the nature of the change in the density of experimental glasses from the NC value is described by a quadratic function. The effect of the Na2O/CaO and CaO/P2O5 mass ratios on the viscosity of experimental glasses in the range of 109–106 Pa·s was studied in sufficient detail using viscometry. It is shown that the content of calcium and phosphorus oxides has a decisive influence on this indicator.  

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Published online

2024-12-30

Issue

No. 4(86) (2024)

Section

Chemical Technologies

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.