Silicon oxycarbide glasses from silicone networks

dc.creatorRadovanovic, E
dc.creatorGozzi, MF
dc.creatorGoncalves, MC
dc.creatorYoshida, IVP
dc.date1999
dc.dateJUN
dc.date2014-12-02T16:31:07Z
dc.date2015-11-26T17:41:38Z
dc.date2014-12-02T16:31:07Z
dc.date2015-11-26T17:41:38Z
dc.date.accessioned2018-03-29T00:23:27Z
dc.date.available2018-03-29T00:23:27Z
dc.identifierJournal Of Non-crystalline Solids. Elsevier Science Bv, v. 248, n. 1, n. 37, n. 48, 1999.
dc.identifier0022-3093
dc.identifierWOS:000080624600005
dc.identifier10.1016/S0022-3093(99)00101-5
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75588
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/75588
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75588
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1287066
dc.descriptionRubbers resulting from the hydrosilylation reaction between poly(methylsiloxane), and 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcycletetrasiloxane, have been pyrolyzed to silicon oxycarbide ceramics, with ceramic yield varying as a function of the mixture composition. The rubber-ceramic conversion process was investigated by C-13 and Si-29 nuclear magnetic resonance and infrared spectroscopies, thermogravimetric analysis and density measurements. The composition of the ceramic products was determined by elemental and X-ray fluorescence analyses and their structural characterization was done by Si-29 solid-state magic angle spinning nuclear magnetic resonance. The structure of the ceramic products is, actually, a mixture of SiO4, SiCO3, SiC2O2, SiC3O, SiC4 sites randomly distributed in the bulk. The C-C/SiCxO4-x composites were prepared by infiltration of the siloxane mixture into the bidirectionally reinforced carbon plate. The composites obtained after pyrolysis showed an improved resistance to oxidation in relation to untreated carbon plates. (C) 1999 Elsevier Science B.V. All rights reserved.
dc.description248
dc.description1
dc.description37
dc.description48
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationJournal Of Non-crystalline Solids
dc.relationJ. Non-Cryst. Solids
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectMetal-matrix Composites
dc.subjectPyrolytic Conversion
dc.subjectOrganosilicon Precursors
dc.subjectRedistribution Reactions
dc.subjectCarbide
dc.subjectGel
dc.subjectMicrostructure
dc.subjectCeramics
dc.subjectPolymers
dc.subjectFibers
dc.titleSilicon oxycarbide glasses from silicone networks
dc.typeArtículos de revistas


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