elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Net Shape Manufacturing of Fabric Reinforced Oxide/Oxide Components via Resin Transfer Molding and Pyrolysis

Heidenreich, B. und Krenkel, W. und Frieß, M. und Gedon, H. (2004) Net Shape Manufacturing of Fabric Reinforced Oxide/Oxide Components via Resin Transfer Molding and Pyrolysis. 28 th International Cocoa Beach Conference and Exposition on Advanced Ceramics & Composites, Cocoa Beach, Florida, USA, 25-30.01.2004.

Dieses Archiv kann nicht den gesamten Text zur Verfügung stellen.

Kurzfassung

CMC materials on the basis of oxide fibers and oxide matrices offer inherent oxidation stability and chemical resistance and therefore can be used for long term applications at high temperatures. For this materials one of the most interesting field of application are aircraft turbine engines, e.g. for thin-walled structures of hot gas liners or for heat shields in the combustion chamber. The DLR developed a modified process for the manufacturing of Oxide/Oxide-CMC on the basis of the liquid polymer infiltration (LPI). Hereby, dry preforms made of fiber fabrics were pressure infiltrated with polysiloxane precursors via resin transfer molding (RTM) and pyrolised. To demonstrate the process` potential for the manufacture of large complex CMC structures, an exemplary intake ramp for a propulsion system was developed. The intake ramp was made in a near net shape technique by the manufacturing of seven thin-walled, tubular profiles which were nondetachably assembled during an in situ joining process. The effort for the final machining with diamond coated tools could therefore be reduced to the interface regions. With this technique a thin-walled, complex structure with outer dimensions of 265 mm x 110 mm x 35 mm and a low mass of only 0.4 kg could be realized. In this paper, the material properties and the construction and manufacturing of the intake ramp is presented.

Dokumentart:Konferenzbeitrag (Vortrag)
Zusätzliche Informationen: LIDO-Berichtsjahr=2005,
Titel:Net Shape Manufacturing of Fabric Reinforced Oxide/Oxide Components via Resin Transfer Molding and Pyrolysis
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Heidenreich, B.NICHT SPEZIFIZIERT
Krenkel, W.NICHT SPEZIFIZIERT
Frieß, M.NICHT SPEZIFIZIERT
Gedon, H.WIWEB
Datum:2004
Status:veröffentlicht
Stichwörter:manufacture, intake ramp, CMC, composites, ceramic, oxide, liquid polymer infiltration, LPI, polysiloxane
Veranstaltungstitel:28 th International Cocoa Beach Conference and Exposition on Advanced Ceramics & Composites, Cocoa Beach, Florida, USA, 25-30.01.2004
Veranstalter :The American Ceramic Society
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W RP - Raumtransport
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):NICHT SPEZIFIZIERT
Standort: Stuttgart
Institute & Einrichtungen:Institut für Bauweisen- und Konstruktionsforschung
Hinterlegt von: elib DLR-Beauftragter
Hinterlegt am:16 Sep 2005
Letzte Änderung:14 Jan 2010 13:24

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.