A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROCEDE DE FABRICATION D'UNE PIECE CREUSE EN MATERIAU COMPOSITE A MATRICE METALLIQUE OU CERAMIQUE RENFORCEE AVEC DES FIBRES COURTES
A method for manufacturing a hollow part made of ceramic matrix or metal matrix composite, includes preparing a raw material including short fibers and a ceramic matrix precursor charge, positioning a sacrificial core in a molding cavity of injection-molding equipment, shaping the raw material by injection molding the raw material into the free space between the sacrificial core and an internal wall of the cavity to obtain a green part including the sacrificial core and the shaped raw material, extracting the green part from the equipment, densifying the raw material by flash sintering of the green part to transform the charge into a ceramic matrix, removing the sacrificial core to obtain a hollow part made of ceramic matrix or metal matrix composite, wherein the sacrificial core is coated with a flexible graphite sheet, with a graphite layer deposited by spraying or with a boron nitride paint layer before the injecting.
PROCEDE DE FABRICATION D'UNE PIECE CREUSE EN MATERIAU COMPOSITE A MATRICE METALLIQUE OU CERAMIQUE RENFORCEE AVEC DES FIBRES COURTES
A method for manufacturing a hollow part made of ceramic matrix or metal matrix composite, includes preparing a raw material including short fibers and a ceramic matrix precursor charge, positioning a sacrificial core in a molding cavity of injection-molding equipment, shaping the raw material by injection molding the raw material into the free space between the sacrificial core and an internal wall of the cavity to obtain a green part including the sacrificial core and the shaped raw material, extracting the green part from the equipment, densifying the raw material by flash sintering of the green part to transform the charge into a ceramic matrix, removing the sacrificial core to obtain a hollow part made of ceramic matrix or metal matrix composite, wherein the sacrificial core is coated with a flexible graphite sheet, with a graphite layer deposited by spraying or with a boron nitride paint layer before the injecting.
PROCEDE DE FABRICATION D'UNE PIECE CREUSE EN MATERIAU COMPOSITE A MATRICE METALLIQUE OU CERAMIQUE RENFORCEE AVEC DES FIBRES COURTES
METHOD FOR MANUFACTURING A HOLLOW PART MADE OF METAL MATRIX OR CERAMIC MATRIX COMPOSITE REINFORCED WITH SHORT FIBERS
VERFAHREN ZUR HERSTELLUNG EINES HOHLEN TEILS AUS MIT KURZEN FASERN VERSTÄRKTER METALLMATRIX ODER KERAMIKMATRIXVERBUNDSTOFF
DELEHOUZE ARNAUD (author) / BOUILLON ERIC (author)
2024-05-29
Patent
Electronic Resource
French
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