Title: Thin, porous metal sheets and methods for making the same

Abstract

Thin, porous metal sheets and methods for forming them are presented to enable a variety of applications and devices. The thin, porous metal sheets are less than or equal to approximately 200 .mu.m thick, have a porosity between 25% and 75% by volume, and have pores with an average diameter less than or equal to approximately 2 .mu.m. The thin, porous metal sheets can be fabricated by preparing a slurry having between 10 and 50 wt % solvent and between 20 and 80 wt % powder of a metal precursor. The average particle size in the metal precursor powder should be between 100 nm and 5 .mu.m.

Inventors:

Liu, Wei; Li, Xiaohong Shari; Canfield, Nathan L.

Issue Date:

2015-07-14

Research Org.:

Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1193400

Patent Number(s):

9079136

Application Number:

13/032,752

Assignee:

Battelle Memorial Institute (Richland, WA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D2239/10 - Filtering material manufacturing
B01D2239/1216 - Pore size
B01D2323/08 - Specific temperatures applied
B01D2323/18 - Use of pore-control agents
B01D2325/10 - Catalysts being present on the surface of the membrane or in the pores
B01D2325/12 - Adsorbents being present on the surface of the membranes or in the pores
B01D2325/24 - Mechanical properties, e.g. strength
B01D39/2051 - {Metallic foam}
B01D67/0041 - {by agglomeration of particles in the dry state, e.g. sintering}
B01D67/0046 - {by slurry techniques, e.g. die or slip-casting}
B01D67/0058 - {by selective elimination of components, e.g. by leaching}
B01D69/06 - Flat membranes
B01D69/10 - Supported membranes
B01D71/022 - {Metals}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J20/3204 - {Inorganic carriers, supports or substrates}
B01J20/3297 - {Coatings in the shape of a sheet}

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F2998/10 - Processes characterised by the sequence of their steps
B22F3/10 - Sintering only
B22F3/1121 - {by using decomposable, meltable or sublimatable fillers}
B22F3/18 - by using pressure rollers
B22F3/22 - for producing castings from a slip
B22F5/006 - {of flat products, e.g. sheets
B22F9/30 - with decomposition of metal compounds, e.g. by pyrolysis

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

C22C19/002 - {with copper as the next major constituent}
C22C19/03 - based on nickel
C22C38/08 - containing nickel {

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T428/12014 - having metal particles
Y10T428/31678 - Of metal

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DOE Contract Number:  

AC05-76RL01830

Resource Type:

Patent

Resource Relation:

Patent File Date: 2011 Feb 23

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE