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Evolution of glass properties during a substitution of S by Se in Ge28Sb12S60-xSex glass network

hal.structure.identifierSchool of Materials Science and Engineering [COMSET]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGUERY, Guillaume
hal.structure.identifierSchool of Materials Science and Engineering [COMSET]
dc.contributor.authorMUSGRAVES, David J.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLABRUGÈRE, Christine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFARGIN, Evelyne
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARDINAL, Thierry
hal.structure.identifierSchool of Materials Science and Engineering [COMSET]
dc.contributor.authorRICHARDSON, Kathleen
dc.date.issued2012
dc.identifier.issn0022-3093
dc.description.abstractEnIn this paper, a detailed study to examine the influence of chalcogen S/Se mole % in the Ge28Sb12S60 −xSexglass system, with x = 0, 15, 30, 45 and 60, is presented that provides insight into the effect of chalcogen content on the glassnetwork and properties. Specifically, we report results of a systematic study to evaluate the relationship between compositional variation, glassproperties and dominant bonding configurations. These materials are important to applications in optics manufacturing where correlation of physical and optical properties is required to predict fabrication behavior and ultimate material performance. It has been found that the dominant bonds in the glass system change upon reaching a specific molar ratio (percentage, %) of chalcogen substitution, between 30 < x < 45 mol%, changing from Ge―Se to Sb―Se bonds as the dominant bond type. This singularity has been observed using micro-Raman spectroscopy and X-ray photoelectron spectroscopy. This effect of the dominant bond configurational change was also shown to impart changes in important physical properties including micro-hardness, thermal properties, and the glass' viscometric behavior. Results indicate that the observed dominant bond change was responsible for a constant value in the evolution of both the micro-hardness and calorimetric glass transition temperature. The viscosity was also affected by the change in dominant bond type, breaking the monotony of the viscosity evolution during the Ssubstitution, due to the total strength of the vitreous system which does not linearly increase.
dc.language.isoen
dc.publisherElsevier
dc.subject.enChalcogenide glass
dc.subject.enRaman spectroscopy
dc.subject.enX-ray photoelectron spectroscopy
dc.subject.enGlass properties
dc.title.enEvolution of glass properties during a substitution of S by Se in Ge28Sb12S60-xSex glass network
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jnoncrysol.2012.05.007
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Non-Crystalline Solids
bordeaux.page1740-1745
bordeaux.volume358
bordeaux.issue15
bordeaux.peerReviewedoui
hal.identifierhal-00712602
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00712602v1
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