Synthesis, thermal, physical, structural, optical, and elastic characteristics of new class of glasses based on the Sb2O3-K2O-B2O3 system

Abstract A new series of glasses based on the system (80-x) Sb₂O₃-20K₂O-xB₂O₃ where (0 ≤ x ≤ 40 mol. %) was prepared using melt-quenching process. XRD characterization is used to improve the non cristallinity nature of the glass samples. The different structural characteristics, including molar volume (Vm), density (ρ), d (B−B) distance between two boron atoms, oxygen content by oxygen molar volume (VO), packing density (OPD) and the free volume (Vf) were obtained to properly verify the compactness of the SKB glass network characterized by more links. In addition to the thermal, optical, elastic, structural and physical factors, which were examined, the vitreous nature of SKB glasses was verified according to the DSC curves. Structural analysis were performed using ATR spectroscopy to determine the fraction of four coordinated boron atoms as well as the presence of several functional groups in the glass samples. All these changes support the modification of the glass structure from BO₃ to BO₄. The study carried out using ultrasonic technology has been done to investigate the structural role of B₂O₃ in SKB glasses. The different moduli of elasticity (E, K, G, L, and υ) as well as the Debye temperature and Makishima Mackenzie’s theory can be explained by the glass structure’s compactness.