B - Operations – Transporting – 22 – F
Patent
B - Operations, Transporting
22
F
B22F 3/11 (2006.01) B01D 39/20 (2006.01) B22F 7/00 (2006.01)
Patent
CA 2444931
The invention relates to a process for the production of sintered porous bodies, to porous bodies produced correspondingly using the process, and to their use. With the solution according to the invention, sintered bodies which achieve improved properties, such as an increased surface area, deformability of the structures at room temperature or modification of the initial pore volume, are to be produced. To this end, at least one sintering-active powder which forms at least one intermetallic phase or mixed crystals is applied to the surface of a porous basic body. Heat treatment is to be carried out subsequently, in which intermetallic phases or mixed crystals which increase the specific surface area can be formed.
L'invention porte sur un procédé de production de corps poreux frittés, sur ces corps poreux obtenus et sur leur utilisation. Grâce à cette invention, on obtient des corps frittés qui présentent de meilleures propriétés telles qu'une surface active accrue, une déformabilité des structures à température ambiante ou une modification du volume poreux initial. A cet effet, au moins une poudre active de frittage formant au moins une phase intermétallique ou des cristaux mixtes est appliquée sur la surface du corps poreux de base. On procède ensuite à un traitement thermique au cours duquel peuvent se former des phases intermétalliques ou des cristaux mixtes qui augmentent la surface active spécifique.
Boehm Alexander
Goehler Hartmut
Naumann Dirk
Fraunhofer-Gesellschaft Zur Foerderung Der Angewan Dten Forschun
Inco Limited
Smart & Biggar
Vale International S.a.
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