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Methyldichloroborane evidenced as an intermediate in the chemical vapour deposition synthesis of boron carbide

dc.rights.licenseopenen_US
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorREINISCH, Guillaume
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorPATEL, S
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorCHOLLON, Georges
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorLEYSSALE, Jean-Marc
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorALOTTA, D
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorBERTRAND, Nathalie
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorVIGNOLES, Gerard
IDREF: 070191875
dc.date.accessioned2023-10-25T11:02:54Z
dc.date.available2023-10-25T11:02:54Z
dc.date.issued2011-09-01
dc.identifier.issn1533-4880en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/184535
dc.description.abstractEnThe most recent ceramic-matrix composites (CMC) considered for long-life applications as thermostructural parts in aerospace propulsion contain, among others, boron-rich phases like boron carbide. This compound is prepared by thermal Chemical Vapour Infiltration (CVI), starting from precursors like boron halides and hydrocarbons. We present a study aiming at a precise knowledge of the gas-phase composition in a hot-zone LPCVD reactor fed with BCl3, CH4 and H2, which combines experimental and theoretical approaches. This work has brought strong evidences of the presence of Methydichloroborane (MDB, BCl2CH3) in the process. It is demonstrated that this intermediate, the presence of which had never been formally proved before, appears for processing temperatures slightly lower than the deposition temperature of boron carbide. The study features quantum chemical computations, which provide several pieces of information like thermochemical and kinetic data, as well as vibration and rotation frequencies, reaction kinetics computations, and experimental gas-phase characterization of several species by FTIR, for several processing parameter sets. The main results are presented, and the place of MDB in the reaction scheme is discussed.
dc.language.isoENen_US
dc.title.enMethyldichloroborane evidenced as an intermediate in the chemical vapour deposition synthesis of boron carbide
dc.title.alternativeJ Nanosci Nanotechnolen_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1166/jnn.2011.5105en_US
dc.subject.halChimie/Matériauxen_US
dc.identifier.pubmed22097577en_US
bordeaux.journalJournal of Nanoscience and Nanotechnologyen_US
bordeaux.page8323-7en_US
bordeaux.volume11en_US
bordeaux.hal.laboratoriesLaboratoire des Composites Thermo Structuraux (LCTS) - UMR 5801en_US
bordeaux.issue9en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.institutionCEAen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcepubmed
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcepubmed
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Nanoscience%20and%20Nanotechnology&rft.date=2011-09-01&rft.volume=11&rft.issue=9&rft.spage=8323-7&rft.epage=8323-7&rft.eissn=1533-4880&rft.issn=1533-4880&rft.au=REINISCH,%20Guillaume&PATEL,%20S&CHOLLON,%20Georges&LEYSSALE,%20Jean-Marc&ALOTTA,%20D&rft.genre=article


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