Study of fluorine losses in oxyfluoride glasses

Glasses in PbGeO3–PbF2–CdF2 and GeO2–PbO–PbF2–CdF2 systems were studied and the fluorine losses during synthesis were investigated. Samples were characterized by differential scanning calorimetry (DSC), X-ray diffraction, Fourier transform infrared spectroscopy (FTIR) and Raman scattering spectrosco...

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Bibliographic Details
Published inJournal of non-crystalline solids Vol. 351; no. 52-54; pp. 3804 - 3808
Main Authors Bueno, L.A., Messaddeq, Y., Dias Filho, F.A., Ribeiro, S.J.L.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.12.2005
Elsevier
Subjects
Condensed matter: structure, mechanical and thermal properties
Disordered solids
Exact sciences and technology
Glasses
Physics
Structure of solids and liquids; crystallography
C100
G180
61.43.F
G130
C235
81.05.K
Differential scanning calorimetry
Raman spectra
Synthesis
Glass
Fourier transform spectra
Chemical composition
Glass structure
XRD
Infrared spectra
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Summary:Glasses in PbGeO3–PbF2–CdF2 and GeO2–PbO–PbF2–CdF2 systems were studied and the fluorine losses during synthesis were investigated. Samples were characterized by differential scanning calorimetry (DSC), X-ray diffraction, Fourier transform infrared spectroscopy (FTIR) and Raman scattering spectroscopy. The use of stoichiometric germanate glass, PbGeO3, instead of introducing individual oxides (GeO2+PbO) lead to decreasing fluorine losses, as detected by a fluorine ion selective electrode. The main structural features obtained from vibrational spectroscopy could be described by a metagermanate basic structure permeating fluorine rich regions.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-3093
1873-4812
DOI:10.1016/j.jnoncrysol.2005.10.007