EP 4355710 A1 20240424 - METHOD FOR PRODUCING A SINTERED CERAMIC FOAM
Title (en)
METHOD FOR PRODUCING A SINTERED CERAMIC FOAM
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES GESINTERTEN KERAMIKSCHAUMES
Title (fr)
PROCÉDÉ DE FABRICATION D'UNE MOUSSE CÉRAMIQUE FRITTÉE
Publication
Application
Priority
- FR 2106428 A 20210617
- EP 2022066546 W 20220617
Abstract (en)
[origin: WO2022263623A1] The invention relates to a method for producing a sintered ceramic foam according to the following successive steps: a) preparing a mixture M containing at least one ceramic powder suspended in water, at least one gelling agent and at least one foaming agent, at a mixing temperature above the gelling temperature of said gelling agent, b) shearing said mixture M at a foaming temperature above said gelling temperature, until an intermediate foam is obtained, c) gelling said intermediate foam by cooling said intermediate foam to a temperature at least half that of the gelling temperature of the gelling agent, in °C, d) drying said gelled foam in a climatic oven, preferably under forced ventilation and/or by supercritical autoclaving, e) firing said preform at a temperature above 1300°C and below 2300°C.
IPC 8 full level
C04B 35/10 (2006.01); C04B 35/14 (2006.01); C04B 35/185 (2006.01); C04B 35/195 (2006.01); C04B 35/462 (2006.01); C04B 35/478 (2006.01); C04B 35/48 (2006.01); C04B 35/565 (2006.01); C04B 38/00 (2006.01); C04B 38/10 (2006.01)
CPC (source: EP)
C04B 35/10 (2013.01); C04B 35/14 (2013.01); C04B 35/185 (2013.01); C04B 35/195 (2013.01); C04B 35/462 (2013.01); C04B 35/478 (2013.01); C04B 35/48 (2013.01); C04B 35/565 (2013.01); C04B 38/02 (2013.01); C04B 35/6263 (2013.01); C04B 2111/00793 (2013.01); C04B 2111/0081 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5472 (2013.01); C04B 2235/606 (2013.01)
C-Set (source: EP)
C04B 38/02 + C04B 35/10 + C04B 35/14 + C04B 35/185 + C04B 35/195 + C04B 35/462 + C04B 35/478 + C04B 35/48 + C04B 35/565 + C04B 38/0054 + C04B 38/0058 + C04B 38/0064 + C04B 38/0074
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022263623 A1 20221222; EP 4355710 A1 20240424; FR 3124181 A1 20221223; FR 3124181 B1 20240329
DOCDB simple family (application)
EP 2022066546 W 20220617; EP 22734298 A 20220617; FR 2106428 A 20210617