Method for producing microporous metal bodies

Patent · Tue Dec 07 00:00:00 EST 1982

OSTI ID:6387503

Danko, J C

Tungsten is vapor-deposited by hydrogen reduction of tungsten hexafluoride (Wf/sub 6/) to produce a tungsten body having from 40 to 100 ppm fluorine. The tungsten is then heated under vacuum produce grain boundary porosity for a sufficient period of time to allow the pores along the grain boundaries to become interconnected.

• Assignee: Dept. of Energy
• Patent Number(s): US 4362564
• OSTI ID: 6387503
• Resource Relation: Patent File Date: Filed date 12 Sep 1967; Other Information: PAT-APPL-668744
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TUNGSTEN
MICROSTRUCTURE
POROSITY
TUNGSTEN FLUORIDES
EVAPORATION
CHEMICAL VAPOR DEPOSITION
CLADDING
GRAIN BOUNDARIES
HYDROGEN
CHEMICAL COATING
CRYSTAL STRUCTURE
DEPOSITION
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
METALS
NONMETALS
PHASE TRANSFORMATIONS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN COMPOUNDS
360102* - Metals & Alloys- Structure & Phase Studies