Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/203277
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dc.contributor.authorMinasyan, Tatevik-
dc.contributor.authorLiu, Le-
dc.contributor.authorAghayan, Marina-
dc.contributor.authorRodríguez, Miguel A.-
dc.contributor.authorAydinyan, Sofiya-
dc.contributor.authorHussainova, Irina-
dc.date.accessioned2020-03-09T14:03:03Z-
dc.date.available2020-03-09T14:03:03Z-
dc.date.issued2019-
dc.identifierdoi: 10.1016/j.pnsc.2019.03.017-
dc.identifierissn: 1002-0071-
dc.identifier.citationProgress in Natural Science-
dc.identifier.urihttp://hdl.handle.net/10261/203277-
dc.description.abstract[EN] The catalytic effect of metal oxide/alumina whiskers (CeO2,Mn3O4, NiO, Co3O4,Fe2O3,Cr2O3/AW) was eval-uated on their ability to drive the nitridation of silicon and to generate mesoporousfibrous silicon networks.Silicon powder with different particles size along with the catalyst was nitridized at 1300 °C for 5 h in nitrogenand nitrogen diluted with 10 vol% ammonia atmospheres. Nitridation degree of silicon up to 99% was recordedusing 1.5 wt% CeO2and Fe2O3catalysts in nitrogen-ammonia atmosphere. The catalyzed samples containsubmicronic silicon nitridefibres with a diameter of 400–500 nm and a length of up to few micrometers. Thecompressive strength of 46 ± 1 MPa was measured for silicon samples catalyzed with nickel oxide/aluminawhiskers and nitridized in N2/10 vol%NH3atmosphere. Porous silicon nitride networks were produced with45–52% porosity, pore sizes in the range of 370–1200 nm and median pore in the range of 495–1655 nm.-
dc.description.sponsorshipThis research was supported by the Estonian Research Council under PUT1063 (I. Hussainova), PSG220 and MOBJD166 (S.Aydinyan). Authors are greatly acknowledged Dr. Olga Volobujeva(project IUT-T4), Mr. Mart Viljus and Mr. Rainer Traksmaa for pro-viding SEM and XRD analysis-
dc.languageeng-
dc.publisherElsevier-
dc.relation.isversionofPublisher's version-
dc.rightsopenAccess-
dc.subjectMesoporous substrate-
dc.subjectSilicon nitride-
dc.subjectNanofibers-
dc.subjectWet-combustion-
dc.subjectCatalytic nitridation-
dc.titleMesoporous fibrous silicon nitride by catalytic nitridation of silicon-
dc.typeartículo-
dc.identifier.doi10.1016/j.pnsc.2019.03.017-
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.pnsc.2019.03.017-
dc.date.updated2020-03-09T14:03:03Z-
dc.rights.license© 2019 Chinese Materials Research Society. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license https://creativecommons.org/licenses/by-nc-nd/4.0/-
dc.contributor.funderEstonian Research Council-
dc.relation.csic-
item.fulltextWith Fulltext-
item.openairetypeartículo-
item.cerifentitytypePublications-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
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