https://www.selleckchem.com/pr....oducts/CP-690550.htm
High electronically conductive tungsten phosphate glass-ceramics have been prepared by the controlled crystallization of binary 60WO3-40P2O5 glass in the temperature range from 700 to 935 °C and for 1 to 24 h. The substantial increase in the conductivity for four orders of magnitude is a result of the formation of electronically conductive W2O3(PO4)2 and WO3 phases. At low crystallization temperature the dominant W2O3(PO4)2 phase is created, whereas at 935 °C for 24 h the formation of semiconducting WO3 crystallites of an average size
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