Thin porous layer with open porosity and a method for production thereof
AssigneeGKN Sinter Metals, LLC
InventorsAndreas Kuhstoss, Thomas Rothig, Peter Neumann
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Abstract
The aim of the invention is to produce a thin porous layer, with a defined porosity and also, a high strength. Said aim is achieved, whereby such a layer with open porosity is produced from a mixture, comprising a sinterable powder with a predetermined powder particle size distribution. The sintered layer is of a thickness, which corresponds to about triple the average diameter of the powder particles employed, has a pore diameter in the range from 0.01 to 50 μm and a tensile strength of in a range from about 5 to 500 N/mm2. The invention further relates to a method for the production of said thin porous layer with open porosity.
Claims12
1-6. (Cancelled)
A method for manufacturing a thin porous layer with open porosity from a mixture comprising a sinterable powder having a predeterminable powder particle size distribution, wherein the thickness of the layer corresponds to at least about three times the average diameter of the powder particles used and has a defined pore diameter between about 0.01 μm and about 50 μm and a tensile strength between about 5 and about 500 N/mm2, and wherein the sinterable powder is suspended in a carrier fluid having a predetermined size distribution of said powder particles along with particles of pore forming material having a predetermined size wherein said carrier fluid is applied to a supporting body in at least one thin layer and dried, and the resulting green layer is sintered.
(Cancelled)
Dependencies are inferred from the claim text.