Peculiarities of the oxyfluoride glasses' structure and crystallization

Glasses in the system of MnNbOF5–BaF2–BiF3–ErF3

“…According to the presented measurement data (Table 1), the glass formation temperatures of the obtained systems fall into the range of 330-280°C, which is within the glass formation temperature range of similar systems with higher bismuth trifluoride content [13].…”

“…The glass structure in the MnNbOF 5 -BaF 2 -BiF 3 system was investigated earlier using the IR and Raman spectroscopy methods [12,13]. As was revealed by the comparison of the obtained spectra with those of crystalline oxyfluoroniobates and earlier studied systems of NbO 2 FBaF 2 [15] and MnNbOF 5 -BaF 2 , the glass network is built from oxyfluoroniobate polyhedra linked through oxygen bridges.…”

“…We demonstrated the possibility of introduction of bismuth trifluoride into systems on the basis of MnNbOF 5 [11]. The results of studying of the structure and thermal parameters, including the crystallization process, of glasses in the system MnNbOF 5 -BiF 3 -BaF 2 are described in [12,13]. The present work reports the results of studies of glasses in the MnNbOF 5 -BaF 2 -BiF 3 system doped with ErF 3 .…”

Transparent oxyfluoride glass ceramics

“…Therefore, in order to resolve that latter lasing problem, one has to find the new glass compositions that would not have areas of phase separation (aliquation) with fluorides. Already, there are numerous classes of oxyfluoride glasses that should be thoroughly M a n u s c r i p t 37 investigated from this point of view [347][348][349][350]357] in order to develop new types of oxyfluoride glass ceramics.…”

Synthesis of transparent chloroborosilicate nanoglass-ceramics: Crystallization and growth mechanism of BaCl2 nanocrystals

“…Ignatieva et al reported the peculiarities of the oxyfluoride glass structure and crystallization which makes it possible to obtain GC with crystal phases containing Bi [8]. The formation of oxyfluoride GCs in the SiO 2 -PbF 2 -CdF 2 -ZnF 2 -Al 2 O 3 -Er (Eu, Yb)F 3 system was studied and it was demonstrated that the heat treatment of the lead fluorosilicate glass leads to the formation of the nanosized (16-25 nm) crystalline phase [9].…”