Mostrar el registro sencillo del ítem

Nano-heterogeneous structure of (1-x)KNbO<sub>3</sub>-xSiO<sub>2</sub> glasses in the low glass-forming oxide content range 0.05 ≤ x ≤ 0.3

hal.structure.identifierInternational Laboratory of Glass-Based Functional Materials
dc.contributor.authorSIGAEV, V. N.
hal.structure.identifierInternational Laboratory of Glass-Based Functional Materials
dc.contributor.authorLOTAREV, S. V.
hal.structure.identifierInternational Laboratory of Glass-Based Functional Materials
dc.contributor.authorRYZHENKOV, V. S.
hal.structure.identifierInternational Laboratory of Glass-Based Functional Materials
dc.contributor.authorGOLUBEV, N. V.
hal.structure.identifierInternational Laboratory of Glass-Based Functional Materials
hal.structure.identifierL.Ya. Karpov Institute of Physical Chemistry
dc.contributor.authorSTEFANOVICH, S. Yu.
hal.structure.identifierLaboratoire de Physico-Chimie des Matériaux Luminescents [LPCML]
dc.contributor.authorCHAMPAGNON, Bernard
hal.structure.identifierLaboratoire de Physico-Chimie des Matériaux Luminescents [LPCML]
dc.contributor.authorVOUAGNER, Dominique
hal.structure.identifierLaboratoire de Physico-Chimie des Matériaux Luminescents [LPCML]
dc.contributor.authorNARDOU, Eric
hal.structure.identifierInstitut Laue-Langevin [ILL]
dc.contributor.authorPORCAR, Lionel
hal.structure.identifierInternational Laboratory of Glass-Based Functional Materials
hal.structure.identifierDepartment of Materials Science
dc.contributor.authorPALEARI, A.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFARGIN, Evelyne
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorRODRIGUEZ, Vincent
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorDUSSAUZE, Marc
dc.date.issued2011
dc.identifier.issn0022-3093
dc.description.abstractEnGlasses with a high content of niobium oxide are of significant interest for electro-optics and nonlinear optics. In the present paper we report the results of the investigation of the submicroscopic structure and nonlinear optical properties of (1-<i>x</i>)KNbO<sub>3</sub>-<i>x</i>SiO<sub>2</sub> (KNS) glasses (x = 0.05-0.30) by XRD, SANS, electron microscopy and second harmonic generation (SHG) technique. Vitreous samples were fabricated by rapid melt cooling, via pressing the melt by steel plates, quenching between rotating metal rolls or splat cooling in air or nitrogen flow. Glasses with <i>x</i> < 0.15 are shown to possess a micro-inhomogeneous structure with regions enriched by SiO<sub>2</sub>. On the contrary, as-quenched glasses with <i>x</i> > 0.15 are found by SANS to be homogeneous, but form nanostructures enriched by SiO<sub>2</sub> after heat-treatment. At temperatures below ~(<i>T</i><sub><i>g</i></sub> + 50 °C), SiO<sub>2</sub>-enriched regions grow slightly, whereas their chemical composition shifts considerably closer to SiO<sub>2</sub>. The data on the nano-inhomogeneous structure enables clarifying the complicated <i>T</i><sub><i>g</i></sub>(<i>x</i>) dependence of KNS glasses. SHG-active KNbO<sub>3</sub> phase precipitates at later stages of crystallization when the glass starts to lose its transparency, and crystallization of perovskite-like KNbO<sub>3</sub> is accompanied by the enhancement of SHG efficiency by several orders of magnitude.
dc.language.isoen
dc.publisherElsevier
dc.title.enNano-heterogeneous structure of (1-x)KNbO<sub>3</sub>-xSiO<sub>2</sub> glasses in the low glass-forming oxide content range 0.05 ≤ x ≤ 0.3
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jnoncrysol.2011.05.004
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Non-Crystalline Solids
bordeaux.page3136-3142
bordeaux.volume357
bordeaux.issue16-17
bordeaux.peerReviewedoui
hal.identifierhal-00606837
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00606837v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Journal%20of%20Non-Crystalline%20Solids&amp;rft.date=2011&amp;rft.volume=357&amp;rft.issue=16-17&amp;rft.spage=3136-3142&amp;rft.epage=3136-3142&amp;rft.eissn=0022-3093&amp;rft.issn=0022-3093&amp;rft.au=SIGAEV,%20V.%20N.&amp;LOTAREV,%20S.%20V.&amp;RYZHENKOV,%20V.%20S.&amp;GOLUBEV,%20N.%20V.&amp;STEFANOVICH,%20S.%20Yu.&amp;rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem