About: Preparation of silicon oxycarbide composites toughened by inorganic fibers via pyrolysis of precursor siloxane composites

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About: Preparation of silicon oxycarbide composites toughened by inorganic fibers via pyrolysis of precursor siloxane composites Goto Sponge NotDistinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://przyrbwn.icm.edu.pl/APP/PDF/120/a120z2p25.pdf
Description	The optimization of silicon oxycarbide (SiOC) synthesis (sol-gel/pyrolysis) is described, starting from methyltriethoxysilane, dimethyldiethoxysilane, tetraethoxysilane, ethyltriethoxysilane and propyltriethoxysilane. Variation of final elemental composition was tested via change of monomer ratios and combinations. The main aim was to achieve low weight losses during cure and pyrolysis and high micromechanical properties. Gas chromatography and mass spectroscopy was used to analyse the by-products of cure and pyrolysis, indicating a prominent role of cyclosiloxane and polyhedral oligomeric silsesquioxane (POSS) oligomers. Best results were obtained with high contents of methyltriethoxysilane in the monomers mixture. The optimization of silicon oxycarbide (SiOC) synthesis (sol-gel/pyrolysis) is described, starting from methyltriethoxysilane, dimethyldiethoxysilane, tetraethoxysilane, ethyltriethoxysilane and propyltriethoxysilane. Variation of final elemental composition was tested via change of monomer ratios and combinations. The main aim was to achieve low weight losses during cure and pyrolysis and high micromechanical properties. Gas chromatography and mass spectroscopy was used to analyse the by-products of cure and pyrolysis, indicating a prominent role of cyclosiloxane and polyhedral oligomeric silsesquioxane (POSS) oligomers. Best results were obtained with high contents of methyltriethoxysilane in the monomers mixture. (en)
Title	Preparation of silicon oxycarbide composites toughened by inorganic fibers via pyrolysis of precursor siloxane composites Preparation of silicon oxycarbide composites toughened by inorganic fibers via pyrolysis of precursor siloxane composites (en)
skos:prefLabel	Preparation of silicon oxycarbide composites toughened by inorganic fibers via pyrolysis of precursor siloxane composites Preparation of silicon oxycarbide composites toughened by inorganic fibers via pyrolysis of precursor siloxane composites (en)
skos:notation	RIV/67985891:_____/11:00362897!RIV12-AV0-67985891
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA106/09/1101), Z(AV0Z20410507), Z(AV0Z30460519), Z(AV0Z40500505)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Havelcová, Martina Sucharda, Zbyněk Černý, Martin Glogar, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav struktury a mechaniky hornin AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	223101
http://linked.open...ai/riv/idVysledku	RIV/67985891:_____/11:00362897
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	silicon oxycarbide; SiOC; siloxane (en)
http://linked.open.../riv/klicoveSlovo	SiOC silicon oxycarbide siloxane
http://linked.open...odStatuVydavatele	PL - Polská republika
http://linked.open...ontrolniKodProRIV	[B644665C3524]
http://linked.open...i/riv/nazevZdroje	Acta Physica Polonica. A
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Development of new matrix types based on pyrolysed resins for composites reinforced with ceramic fibres
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	120
http://linked.open...iv/tvurceVysledku	Chlup, Zdeněk Dlouhý, Ivo Havelcová, Martina Sucharda, Zbyněk Černý, Martin Strachota, Adam Kozák, Vladislav Glogar, Petr
http://linked.open...ain/vavai/riv/wos	000291836900026
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing Research into the properties of geomaterials, development of methods of their ecological exploitation and interpretation of geodynamic processes Progresivní makromolekulární materiály a supramolekulární systémy: syntéza a studium vlastností, jevů a možností využití pro speciální aplikace a moderní technologie
issn	0587-4246
number of pages	5 (xsd:int)

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