%0 Journal Article
%T Non network-former cations in oxide glasses spotted by Raman scattering
%+ Laboratoire Charles Coulomb (L2C)
%+ Institut de Physique du Globe de Paris (IPGP (UMR_7154))
%A Hehlen, Bernard
%A Neuville, Daniel, R.
%< avec comité de lecture
%@ 1463-9076
%J Physical Chemistry Chemical Physics
%I Royal Society of Chemistry
%V 22
%N 22
%P 12724-12731
%8 2020
%D 2020
%R 10.1039/d0cp00630k
%Z Chemical Sciences/Material chemistry
%Z Chemical Sciences/Theoretical and/or physical chemistryJournal articles
%X The depolarized Raman spectra can be used as a probe to reveal the presence of non-network formers in oxide glasses. Two spectral responses involving the cations are observed below 400 cm−1 in more than 30 compositions of binary and ternary aluminosilicates. One of the two bands arises solely from cations close to non-bridging oxygen providing thereby a simple test for qualifying the polymerization state of the glass. The second feature involves all cations whatever their role in the glass and is found to be twofold: one contribution arises from cations charge compensating (AlO4)− tetrahedra and the other one from network modifier cations. These results confirm the net vibrational contrast of cations depending on their structural surrounding.
%G English
%2 https://hal.science/hal-02989584/document
%2 https://hal.science/hal-02989584/file/Final.pdf
%L hal-02989584
%U https://hal.science/hal-02989584
%~ INSU
%~ AFRIQ
%~ CNRS
%~ IPGP
%~ L2C
%~ USPC
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UNIV-PARIS
%~ UNIVERSITE-PARIS
%~ UM-2015-2021