A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PANNEAU D'ATTÉNUATION ACOUSTIQUE EN MATÉRIAU COMPOSITE CÉRAMIQUE OXYDE AVEC ÂME EN MATÉRIAU MÉTALLIQUE CONVERTI ÉLECTROCHIMIQUEMENT
The present disclosure relates to a method for producing an acoustic attenuation panel having two outer skins made from a composite material with a ceramic matrix containing a fibrous reinforcement. The skins are assembled on each side of a central honeycomb core having walls forming acoustic cavities produced by at least partial electrochemical conversion of aluminum into aluminum oxide. The method includes inserting a fugitive filler material into the acoustic cavities, leaving an annular space free in each cavity, on each side against the skin, extending around the cavity, and a step of sintering the composite material, in which the fugitive material is removed and the spaces around the cavities are filled with the composite material.
PANNEAU D'ATTÉNUATION ACOUSTIQUE EN MATÉRIAU COMPOSITE CÉRAMIQUE OXYDE AVEC ÂME EN MATÉRIAU MÉTALLIQUE CONVERTI ÉLECTROCHIMIQUEMENT
The present disclosure relates to a method for producing an acoustic attenuation panel having two outer skins made from a composite material with a ceramic matrix containing a fibrous reinforcement. The skins are assembled on each side of a central honeycomb core having walls forming acoustic cavities produced by at least partial electrochemical conversion of aluminum into aluminum oxide. The method includes inserting a fugitive filler material into the acoustic cavities, leaving an annular space free in each cavity, on each side against the skin, extending around the cavity, and a step of sintering the composite material, in which the fugitive material is removed and the spaces around the cavities are filled with the composite material.
PANNEAU D'ATTÉNUATION ACOUSTIQUE EN MATÉRIAU COMPOSITE CÉRAMIQUE OXYDE AVEC ÂME EN MATÉRIAU MÉTALLIQUE CONVERTI ÉLECTROCHIMIQUEMENT
ACOUSTIC ATTENUATION PANEL IN OXIDE CMC WITH A METALLIC CORE ELECTROCHEMICALLY CONVERTED INTO AN OXIDE
AKUSTISCHE DÄMPFUNGSPLATTE AUS KERAMISCHEM OXIDMATERIAL MIT EINEM KERN AUS EINEM ELEKTROCHEMISCH UMGEWANDELTEN METALLMATERIAL
DELEHOUZE ARNAUD (author) / SENTIS SYLVAIN (author) / DESJOYEAUX BERTRAND (author)
2019-02-27
Patent
Electronic Resource
French
IPC:
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
C04B
Kalk
,
LIME
/
F02C
Gasturbinenanlagen
,
GAS-TURBINE PLANTS
/
F02K
JET-PROPULSION PLANTS
,
Strahltriebwerke
/
G10K
Tonerzeugungsvorrichtungen
,
SOUND-PRODUCING DEVICES
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