Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making porous product
Patent
1993-08-17
1994-11-15
Walsh, Donald P.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making porous product
419 5, 419 6, 419 10, 419 12, 419 13, 419 14, 419 19, 419 23, 419 43, 419 39, 419 57, 21050025, B22F 312
Patent
active
053645863
ABSTRACT:
A filter membrane and a process for making the filter membrane are provided. The filter membrane comprises a metal substrate having a filtering layer thereon comprising sintered ultra-fine particles of metal or ceramic compounds. The filtering layer preferably has an average pore size of from about 30 nanometers to about 200 nanometers. The filter membranes can withstand pressure drops of up to about 0.6 MPa and are useful for a variety of filtering applications.
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Lapovok Vladimir N.
Novikov Victor I.
Trusov Lev I.
Greaves John N.
Ultram International L.L.C.
Walsh Donald P.
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