Turkish Journal of Physics
DOI
-
Abstract
The IR studies have been made in the K_2O-B_2O_3-V_2O_5-Fe_2O_3 glass system. The increase in intensity and shifting of vibrational bands towards lower wave number at 1400-1350 cm^{-1}, 1200 cm^{-1} and 100-940 cm^{-1} in IR spectra have been ascribed to the formation of BO_3 to BO_4 and VO_5 to VO_4 tetrahedra along with the formation of non-bridging oxygens attached to boron and vanadium. In heat-treated glass samples, many new vibrational bands have been observed which were however, absent in the untreated samples. The preservation of the 1020 cm^{-1} band assigned to V=O bond suggests that K_2O shows the preference for borate network upto 20 mole % and is responsible for bringing the changes in borate and vanadate networks. At higher amount of K_2O, the presence of both BO_4 and VO_4 groups facilitates the formation of homogeneous solid solution of the present glass system.
First Page
989
Last Page
996
Recommended Citation
KANCHAN, Dinesh K. and PANCHAL, Harshvadan R. (1998) "Infrared Absorption Study of Potassium-Boro-Vanadate-Iron Glasses," Turkish Journal of Physics: Vol. 22: No. 10, Article 6. Available at: https://journals.tubitak.gov.tr/physics/vol22/iss10/6
