Glasses doped with transition metal (TM) ions exhibit rich optical transitions spanning the entire ultraviolet, visible, and infrared spectral regimes. Here we utilize melt-quenching technique to synthesis binary-TM-doped alkali-borate glasses of composition xCuO-(75-x)B2O3-24.7Li2O-0.3Cr2O3, variable copper ion concentrations (x = 0, 0.2, 1.0 2.0 mol %) a fixed amount chromium (0.3 %). We iden...

The melt-quenching technique was used to prepare a series of chromium-doped borate glasses with the composition xCr2O3–(70 ? x) B2O3–30 Li2O–(x = 0, 0.1, 0.2, 0.3 and 0.5 mol %). low-doping level here employed allowed unambiguously identify well-defined near-edge Cr6+ optical transitions, precisely determine band gap glass host. Additional Cr3+ transitions were observed in visible regime, rende...

Abstract Six borate and silica glasses with varying compositions were investigated for their mechanical radiation shielding viability. Makishima-Mackenzie elastic model was utilized to study the properties of glasses. The obtained results illustrated that PbO Bi2O3 oxides reduced glass samples' properties. For instance, bulks' decreased between 68.15 44.10 GPa, shear also followed same trend fr...

It is known that the coordination number (CN) of atoms or ions in many materials increases through application of sufficiently high pressure. This also applies to glassy materials. In boron-containing glasses, trigonal BO3 units can be transformed into tetrahedral BO4 under pressure. However, one of the key questions is whether the pressure-quenched CN change in glass is reversible upon anneali...

The purpose of this research was to investigate the shielding characteristics high-amount heavy metal oxide and Eu3+-activated borate glasses based on 10La2O3–50HMO–(40–x) B2O3–xEu2O3 (x = 0, 0.5, 1, 2, HMO PbO, Bi2O3). Critical gamma radiation attenuation characteristics, particularly mass coefficients investigated glass samples, were determined using Monte Carlo simulations Phy-x/PSD software...