About: Preparation and oxygen resistance of 2D composites based on E-glass, R-glass, and siloxanes

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About: Preparation and oxygen resistance of 2D composites based on E-glass, R-glass, and siloxanes Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Bidirectional composites on the basis of either plain-weave or satin-weave glass fabric and two types of polysiloxane were cured and then subsequently pyrolyzed at 400, 500, 600 and 700°C in nitrogen. Flexural strength, Young's elasticity modulus and shear modulus before and after oxidation were determined. Structural changes of the matrix in the course of carbonization were identified with microscopy and with infrared and Raman spectroscopy. It was found that the composites carbonized at 500 and 600°C,i.e., in the transition domain between the polymer and the ceramic matrix, exhibit the lowest values of the mechanical parameters as in this range a significant loosening of the matrix takes place. For this reason, oxidation tests in the stream of dry a ir at 400 and 700°C were performed only with samples carbonized at these two temperatures. Bidirectional composites on the basis of either plain-weave or satin-weave glass fabric and two types of polysiloxane were cured and then subsequently pyrolyzed at 400, 500, 600 and 700°C in nitrogen. Flexural strength, Young's elasticity modulus and shear modulus before and after oxidation were determined. Structural changes of the matrix in the course of carbonization were identified with microscopy and with infrared and Raman spectroscopy. It was found that the composites carbonized at 500 and 600°C,i.e., in the transition domain between the polymer and the ceramic matrix, exhibit the lowest values of the mechanical parameters as in this range a significant loosening of the matrix takes place. For this reason, oxidation tests in the stream of dry a ir at 400 and 700°C were performed only with samples carbonized at these two temperatures. (en)
Title	Preparation and oxygen resistance of 2D composites based on E-glass, R-glass, and siloxanes Preparation and oxygen resistance of 2D composites based on E-glass, R-glass, and siloxanes (en)
skos:prefLabel	Preparation and oxygen resistance of 2D composites based on E-glass, R-glass, and siloxanes Preparation and oxygen resistance of 2D composites based on E-glass, R-glass, and siloxanes (en)
skos:notation	RIV/60461373:22640/03:00007648!RIV/2004/GA0/226404/N
http://linked.open.../vavai/riv/strany	458-465
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA104/00/1140), P(GA106/99/0668), Z(AV0Z3046908)
http://linked.open...iv/cisloPeriodika	82
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Matějka, Pavel Machovič, Vladimír
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	Vysoká škola chemicko-technologická v Praze / Centrální laboratoře
http://linked.open...dnocenehoVysledku	622692
http://linked.open...ai/riv/idVysledku	RIV/60461373:22640/03:00007648
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Ceramics; Composite materials; Heat treatment; Chemical techniques; Defects; Heterostructures; Thermal properties; Mechanical properties (en)
http://linked.open.../riv/klicoveSlovo	Composite materials Thermal properties Defects Mechanical properties Ceramics Heat treatment Chemical techniques Heterostructures
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[D58EFA0419C4]
http://linked.open...i/riv/nazevZdroje	Materials Chemistry and Physics
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Composites on the basic of glass fibres and siloxane matrix for the application at high temperatures Materials resistant to temperature and oxidation on the basis of pyrolyzed polysiloxanes
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	82
http://linked.open...iv/tvurceVysledku	Balík, K. Machovič, Vladimír Matějka, Pavel Černý, M. Křena, J. Kolář, F. Mizera, J.
http://linked.open...n/vavai/riv/zamer	Geodynamické procesy ve svrchní vrstvě zemské kůry ovlivňující životní prostředí a ekologické využívání surovin
issn	0254-0584
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	22640

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