Porous metallic bodies

Patent · Tue Dec 24 04:00:00 EST 1985

OSTI ID:5851631

Landingham, R L

Porous metallic bodies having a substantially uniform pore size of less than about 200 microns and a density of less than about 25 percent theoretical, as well as the method for making them. Group IIA, IIIB, IVB, VB and rare earth metal hydrides are heated in a confining container at a controlled rate to a temperature of about greater than the temperature at which the hydride decomposes. Hydrogen is removed from the container and the remaining metal is heated during a second stage to a temperature greater than the temperature at which it was previously heated but not greater than the temperature of 1/2 to 2/3 the temperature at which the metal melts at a controlled rate. The resulting porous metallic body produced has a density less than about 25 percent theoretical and a pore size of less than about 200 microns. The metallic particles of the present invention have high inner surface area and possess minimum resistance to gas flow.

• Assignee: The United States of America as represented by the United States Department of Energy
• Patent Number(s): US 4560621
• OSTI ID: 5851631
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360102 -- Metals & Alloys-- Structure & Phase Studies
ACTINIDE COMPOUNDS
ACTINIDES
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
ALLOYS
BERYLLIUM
BERYLLIUM COMPOUNDS
BERYLLIUM HYDRIDES
CHEMICAL REACTIONS
CONTAINERS
CRYSTAL STRUCTURE
DEHYDRIDATION
ELEMENTS
FABRICATION
HEAT TREATMENTS
HYDRIDES
HYDROGEN COMPOUNDS
MATERIALS
METALS
MICROSTRUCTURE
POROSITY
POROUS MATERIALS
PRODUCTION
SINTERING
TITANIUM
TITANIUM COMPOUNDS
TITANIUM HYDRIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
URANIUM
URANIUM COMPOUNDS
URANIUM HYDRIDES