composite; carbon-magnesium; MMC; metal matrix; thixomoulding; squeeze casting; carbon fibres; capillarity; infiltration; preform; sol/gel; teos
Abstract :
[en] This report describes the accomplished breakthrough for the manufacturing of long carbon fibres reinforced magnesium alloy (AZ91). Infiltration can be performed with non-equilibrium conditions such as fibres preheating, high liquid compacting pressure and low contact times. Thanks to specific TEOS sol/gel treatment, the reached fibre rate is 60 vol.% and the measured Young's modulus of the composite is ca. 110 GPa. The presence of defects including fibre yarns misorientation, unreinforced areas seems very detrimental to the bending properties. Other advanced infiltration techniques with Al pretreatment (K2ZrF6) of fibres is also considered.
Research Center/Unit :
Metallic Materials Science Unit (MMS)
Disciplines :
Materials science & engineering
Author, co-author :
Montrieux, Henri-Michel ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Mertens, Anne ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Lecomte-Beckers, Jacqueline ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Language :
French
Title :
Développement d’une ailette d’obus en composite magnésium renforcé de fibres de carbone
Alternative titles :
[en] Development of a mortar wing made of carbon fibre reinforced magnesium composite
Publication date :
December 2012
Publisher :
Région Wallonne
Number of pages :
120
Name of the research project :
Développement d’une ailette d’obus en composite magnésium renforcé de fibres de carbone
