Journal of Non-Crystalline Solids
Thermo-physical properties of selected CaO-SiO 2 -Al 2 O 3 -MnO formulations, developed as potential fluoride-free alternatives to conventional CaF 2 -containing submerged arc welding (SAW) fluxes, were characterised and compared with that of commercial prototypes of SAW fluxes. Structural features of the molten flux were characterized using Fourier Transform Infrared (FT--IR) and Raman spectrosc…
• Glass-forming region in the system Ag 2 O-WO 3 -P 2 O 5 was determined. • Tungsten-phosphate glasses with only 10 mol% P 2 O 5 were prepared. • Glass color depends on the WO 3 content and optical basicity. • Raman and 31 P MAS NMR reflect transformation of phosphate network to tungstate phosphate network. • The shift of Raman band of W=O bonds vibration depends on the content of Ag + ions. Phos…
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