Conductivity stabilization by metal and oxide additives in ceramics on the basis of VO2 and glass V2O5–P2O5

Phase composition, microstructure and conductivity of (85-α)VO2–15(Vanadium–Phosphate–Glass)–αCu glass–ceramics

“…V 2 O 5 and NH 4 H 2 PO 4 were the initial components for VPG, which was produced by the technology described in [10]. The fabrication method for VO 2 -based glass-ceramics has been described in [1].…”

“…Ceramic materials based on vanadium dioxide VO 2 and V 2 O 5 -P 2 O 5 vanadium-phosphate glass (VPG) exhibit an abrupt change in electric conductivity at a phase transition associated with VO 2 [1] and show a threshold switching in the current-voltage characteristic [2].…”

“…The investigations carried out in [1] have identified possibilities for stabilization of VO 2 based glass-ceramics by means of metal and oxide additives and also by a decrease in sizes of VO 2 crystallites. In this case, glass-ceramics compositions with copper and tin dioxide additives were created [1].…”

“…In this case, glass-ceramics compositions with copper and tin dioxide additives were created [1]. These compositions have shown stable electrical conductivity through temperature cycling through the phase transition temperature in vanadium dioxide.…”

Synthesis and Physicochemical Properties of Ammonium Tetravanadate for Obtaining Vo2

“…Preliminary studies have shown that reduction of crystals size to nanoscale allows to obtain materials based on vanadium dioxide with stable characteristics during thermocycling [6].…”