Electron Paramagnetic Resonance in R 2 O‐Al 2 O 3 −SiO 2 Glass Systems
Source abstract
Abstract
Systematic detection of an EPR signal was conducted for three alkali oxide‐Al 2 O 3 −SiO 2 glass systems. Observed EPR spectra, having a main line with g=2.03 and a broad and anisotropic shape, are attributed to the unsaturated bridging oxygen bond resulting from the breakup of the SiO 2 random network. This signal appears in the area AValkali atom ratio >1 for the Na 2 0 and K 2 O systems, indicating that the collapse of the Al 4‐coordinated structure begins at an equimolar ratio when alumina is substituted for the alkali oxide, whereas somewhat different behavior was observed for the Li 2 O system.
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Research context
OpenAlex topics: Glass properties and applications · Luminescence Properties of Advanced Materials · Nuclear materials and radiation effects
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References (20)
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