Fluidized Bed Chemical Vapor Deposition of pyrocarbon on various types of powders: heat and mass transfer analyses and nanotexture characterization
| dc.rights.license | open | en_US |
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | EL MANSOURI, Amine | |
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | GUETTE, Alain | |
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | BERTRAND, Nathalie | |
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | VIGNOLES, Gerard
IDREF: 070191875 | |
| dc.date.accessioned | 2023-11-22T13:07:13Z | |
| dc.date.available | 2023-11-22T13:07:13Z | |
| dc.date.issued | 2023-07-15 | |
| dc.identifier.issn | 1385-8947 | en_US |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/186059 | |
| dc.description.abstractEn | SiC powders coated by pyrocarbon are a promising feedstock for the synthesis of Ceramic-matrix composites. Preparing such powders is possible using low pressure Fluidized-Bed Chemical Vapor Deposition (FB-CVD) with propane as a precursor at 1000 °C. A preliminary study on non-porous and porous alumina powders as substrates has been carried out. With the help of a numerical assessment of heat transfer in the reactor, it has been possible to optimize the setup and achieve excellent deposition yields (up to 100%), even inside very small pores (7 nm), and transpose the protocol to 200-nm diameter SiC powders. The microstructure and texture of the deposits were characterized by TEM, showing dependence to pore size due to a texture-induction effect by the substrate surface. A quantitative assessment of mass transfer indicated that the results obtained here agree with past studies on FB-CVD of other materials and on pyrocarbon CVD on flat substrates. | |
| dc.language.iso | EN | en_US |
| dc.subject.en | Fluidized Bed | |
| dc.subject.en | Chemical Vapor deposition | |
| dc.subject.en | pyrocarbon | |
| dc.subject.en | heat and mass transfer | |
| dc.subject.en | microstructure | |
| dc.subject.en | reaction kinetics | |
| dc.title.en | Fluidized Bed Chemical Vapor Deposition of pyrocarbon on various types of powders: heat and mass transfer analyses and nanotexture characterization | |
| dc.title.alternative | Chem Eng J | en_US |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1016/j.cej.2023.143544 | en_US |
| dc.subject.hal | Chimie/Génie chimique | en_US |
| bordeaux.journal | Chemical Engineering Journal | en_US |
| bordeaux.page | 143544 | en_US |
| bordeaux.volume | 468 | en_US |
| bordeaux.hal.laboratories | Laboratoire des Composites Thermo Structuraux (LCTS) - UMR 5801 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.institution | CEA | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| bordeaux.identifier.funderID | Safran | en_US |
| bordeaux.import.source | hal | |
| hal.identifier | hal-04133556 | |
| hal.version | 1 | |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | false | |
| workflow.import.source | hal | |
| dc.rights.cc | Pas de Licence CC | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemical%20Engineering%20Journal&rft.date=2023-07-15&rft.volume=468&rft.spage=143544&rft.epage=143544&rft.eissn=1385-8947&rft.issn=1385-8947&rft.au=EL%20MANSOURI,%20Amine&GUETTE,%20Alain&BERTRAND,%20Nathalie&VIGNOLES,%20Gerard&rft.genre=article |
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