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Compression strength of titanium matrix composites depending on fibre volume content, fibre orientation and temperature

Hausmann, Joachim und Schröder, Jörg (2007) Compression strength of titanium matrix composites depending on fibre volume content, fibre orientation and temperature. In: 11th World Conference on Titanium, 2, Seiten 1329-1332. Japan Institute of Metals. 11th World Conference on Titanium, 2007-06-03 - 2007-06-07, Kyoto, Japan. ISBN 978-88903-406-6.

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Kurzfassung

SiC-fibre reinforced titanium matrix composites are marked by exceptional high specific strength and stiffness at temperatures up to 550°C. That is why these materials are considered as promising materials for components of future aeronautic gas turbines. Tensile and fatigue properties have been investigated precisely in the past. Although the compression strength of titanium matrix composites is expected to be very high there is a lack of knowledge and test results. However, some intended applications require compression strength. These are e.g. torque loaded components like shafts having tensile and compressive mean stresses. To support the design of low pressure shafts for aeronautic gas turbines within the European Project VITAL (enVIronmenTALly friendly aero engine) a test matrix has been set up to investigate the tension and compression properties of SiC-fibre reinforced titanium matrix composites with different fibre volume contents at room temperature and at 550°C. The tests were conducted in fibre direction and transverse to the fibres. Here, the results of the compression tests are presented and discussed. In fibre direction the compression strength increases with increasing fibre volume content. At room temperature maximum compression stress values over 5000 MPa at room temperature and of about 3700 MPa at 550°C were reached. Thus the compression strength is more than twice as high as the tensile strength. Transverse to the fibre direction the strength is limited by matrix flow. The influence of the fibre volume content is smaller and the strength level is influenced more by temperature than by fibre volume content. The results show that compression strength especially in fibre direction is an exceptional property offering new opportunities for special applications.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:Compression strength of titanium matrix composites depending on fibre volume content, fibre orientation and temperature
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Hausmann, JoachimNICHT SPEZIFIZIERT
Schröder, JörgBundesamt für Schienenwesen, Bonn
Datum:15 Juli 2007
Erschienen in:11th World Conference on Titanium
Referierte Publikation:Ja
In ISI Web of Science:Nein
Band:2
Seitenbereich:Seiten 1329-1332
Verlag:Japan Institute of Metals
ISBN:978-88903-406-6
Status:veröffentlicht
Stichwörter:titanium matrix composite (TMC), fibre, compression testing
Veranstaltungstitel:11th World Conference on Titanium
Veranstaltungsort:Kyoto, Japan
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2007-06-03 - 2007-06-07
Veranstalter :Japan Titanium Society
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:Antriebe
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L ER - Antriebsforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Verdichtertechnologien
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Werkstoff-Forschung > Leichtmetall-Verbundwerkstoffe
Hinterlegt von: Dr.-Ing. Joachim Hausmann
Hinterlegt am:13 Jun 2008
Letzte Änderung:15 Jan 2010 02:09

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