Filter comprising a silicone carbide separator layer
AssigneeSaint-Gobain Centre De Recherches Et D'Etudes Europeen
InventorsXavier Coeuret, Adrien Vincent
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Abstract
A filter for the filtration of a fluid, such as a liquid, includes or is constituted by a support element made from a porous ceramic material, at least a portion of the surface of the support element being covered with a porous membrane separating layer, the membrane separating layer being constituted essentially of silicon carbide (SiC), its porosity being between 10% and 70% by volume, the median diameter of its pores being between 50 nanometers and 500 nanometers, its mean thickness being between 1 micrometer and 30 micrometers, and its tortuosity being less than 1.7.
Claims19
A filter for the filtration of a fluid, comprising or constituted by a support element made from a porous ceramic material, at least a portion of a surface of said support element being covered with a membrane separating layer, wherein:
- said membrane separating layer is constituted of at least 95% by weight of silicon carbide (SiC) in α crystallographic form,
- a porosity of the membrane separating layer is between 10% and 70% by volume,
- a median pore diameter in the membrane separating layer is between 50 nanometers and 500 nanometers,
- a mean thickness of the membrane separating layer is between 1 micrometer and 30 micrometers,
- a tortuosity of the membrane separating layer is less than 1.7.
Dependencies are inferred from the claim text.