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Numerical modeling of Czochralski growth of Li2MoO4 crystals for heat-scintillation cryogenic bolometers

hal.structure.identifierScience et Ingénierie des Matériaux et Procédés [SIMaP ]
dc.contributor.authorSTELIAN, Carmen
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVELÁZQUEZ, Matias
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierInstitut Lumière Matière [Villeurbanne] [ILM]
dc.contributor.authorVEBER, Philippe
hal.structure.identifierScience et Ingénierie des Matériaux et Procédés [SIMaP ]
dc.contributor.authorAHMINE, Abdelmounaim
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSAND, Jean-Baptiste
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBUŞE, Gabriel
hal.structure.identifierCristalInnov
dc.contributor.authorCABANE, Hugues
hal.structure.identifierScience et Ingénierie des Matériaux et Procédés [SIMaP ]
dc.contributor.authorDUFFAR, Thierry
dc.date.issued2018-06
dc.identifier.issn0022-0248
dc.description.abstractEnLithium molybdate Li2MoO4 (LMO) crystals of mass ranging between 350 and 500 g are excellent candidates to build heat-scintillation cryogenic bolometers likely to be used for the detection of rare events in astroparticle physics. In this work, numerical modeling is applied in order to investigate the Czochralski growth of Li2MoO4 crystals in an inductive furnace. The numerical model was validated by comparing the numerical predictions of the crystal-melt interface shape to experimental visualization of the growth interface. Modeling was performed for two different Czochralski furnaces that use inductive heating. The simulation of the first furnace, which was used to grow Li2MoO4 crystals of 3–4 cm in diameter, reveals non-optimal heat transfer conditions for obtaining good quality crystals. The second furnace, which will be used to grow crystals of 5 cm in diameter, was numerically optimized in order to reduce the temperature gradients in the crystal and to avoid fast crystallization of the bath at the later stages of the growth process.
dc.description.sponsorshipCroissance Czochralski de cristaux massifs Li2MoO4 pour les bolomètres scintillants utilisés en détection des évènements rares - ANR-16-CE08-0018
dc.language.isoen
dc.publisherElsevier
dc.subject.enConvection
dc.subject.enComputer simulation
dc.subject.enCzochralski method
dc.subject.enLithium compounds
dc.subject.enOxides
dc.subject.enScintillator materials
dc.title.enNumerical modeling of Czochralski growth of Li2MoO4 crystals for heat-scintillation cryogenic bolometers
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jcrysgro.2018.04.003
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Crystal Growth
bordeaux.page6-12
bordeaux.volume492
bordeaux.peerReviewedoui
hal.identifierhal-01789004
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01789004v1
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