Numerical modeling of Czochralski growth of Li2MoO4 crystals for heat-scintillation cryogenic bolometers
| hal.structure.identifier | Science et Ingénierie des Matériaux et Procédés [SIMaP ] | |
| dc.contributor.author | STELIAN, Carmen | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | VELÁZQUEZ, Matias | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| hal.structure.identifier | Institut Lumière Matière [Villeurbanne] [ILM] | |
| dc.contributor.author | VEBER, Philippe | |
| hal.structure.identifier | Science et Ingénierie des Matériaux et Procédés [SIMaP ] | |
| dc.contributor.author | AHMINE, Abdelmounaim | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | SAND, Jean-Baptiste | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | BUŞE, Gabriel | |
| hal.structure.identifier | CristalInnov | |
| dc.contributor.author | CABANE, Hugues | |
| hal.structure.identifier | Science et Ingénierie des Matériaux et Procédés [SIMaP ] | |
| dc.contributor.author | DUFFAR, Thierry | |
| dc.date.issued | 2018-06 | |
| dc.identifier.issn | 0022-0248 | |
| dc.description.abstractEn | Lithium 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.sponsorship | Croissance Czochralski de cristaux massifs Li2MoO4 pour les bolomètres scintillants utilisés en détection des évènements rares - ANR-16-CE08-0018 | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Convection | |
| dc.subject.en | Computer simulation | |
| dc.subject.en | Czochralski method | |
| dc.subject.en | Lithium compounds | |
| dc.subject.en | Oxides | |
| dc.subject.en | Scintillator materials | |
| dc.title.en | Numerical modeling of Czochralski growth of Li2MoO4 crystals for heat-scintillation cryogenic bolometers | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.jcrysgro.2018.04.003 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Crystal Growth | |
| bordeaux.page | 6-12 | |
| bordeaux.volume | 492 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01789004 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01789004v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Crystal%20Growth&rft.date=2018-06&rft.volume=492&rft.spage=6-12&rft.epage=6-12&rft.eissn=0022-0248&rft.issn=0022-0248&rft.au=STELIAN,%20Carmen&VEL%C3%81ZQUEZ,%20Matias&VEBER,%20Philippe&AHMINE,%20Abdelmounaim&SAND,%20Jean-Baptiste&rft.genre=article |
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