Glass formation and vibrational spectra of glasses in the RSO4-Na2B4O7-K2SO4 (R = Mg, Ca, Sr, Ba) systems

Abstract

The regions of glass formation in the R SO 4 -Na 2 B 4 O 7 -K 2 SO 4 ( R = Mg, Ca, Sr, Ba) systems are determined. These regions are completely concentrated in the borate-rich region of the concentration triangle and occupy approximately 20% of the triangle area. The IR and Raman spectra of the glasses under investigation are recorded. It is revealed that the vibrational spectra of the glasses depend on the type of alkaline-earth metal cation. It is assumed that the structure of the glasses is determined by the glass-forming borate motifs with embedded sulfate anion tetrahedra.

Regression Model of TCLE of Low Melting Glass of System MgSO₄-KPO₃-Na₂B₄O₇

“…Now theoretical ideas about glass formation and physical parameters of low-melting glasses including TCLE are very limited [19][20][21][22][23][24][25]. Also interest in this class of glasses due to their prospective application is very high [18].…”

Investigation of CaSO₄-KPO₃-Na₂B₄O₇ System as a Basis for Synthesis of Low-Melting Glasses Used as a Glass-Solder Material

“…The creation of a universal solution is not possible because of the wide range of products to be connected and there are the various requirements for their connection. To date, the experimental data for low-melting glasses has been obtained in numerous glass-forming systems [14][15][16][17][18][19][20][21][22][23][24][25] and there is a constant search of new compositions.…”