Method of producing microporous joints in metal bodies

Danko, Joseph C

Title: Method of producing microporous joints in metal bodies

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Abstract

Tungsten is placed in contact with either molybdenum, tantalum, niobium, vanadium, rhenium, or other metal of atoms having a different diffusion coefficient than tungsten. The metals are heated so that the atoms having the higher diffusion coefficient migrate to the metal having the lower diffusion rate, leaving voids in the higher diffusion coefficient metal. Heating is continued until the voids are interconnected.

Inventors:

Danko, Joseph C ^[1]

Danville, CA

Issue Date:: 1982-01-01

OSTI Identifier:: 864430

Patent Number(s):: 4362582

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: C - CHEMISTRY C21 - METALLURGY OF IRON C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS

G - PHYSICS G21 - NUCLEAR PHYSICS G21D - NUCLEAR POWER PLANT

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C - CHEMISTRY C21 - METALLURGY OF IRON C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
C21D3/00 - Diffusion processes for extraction of non-metals

G - PHYSICS G21 - NUCLEAR PHYSICS G21D - NUCLEAR POWER PLANT
G21D7/04 - using thermoelectric elements {or thermoionic converters}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E30/00 - Energy generation of nuclear origin

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F7/00 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting {wherein at least one part is obtained by sintering or compression

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S148/902 - having portions of differing metallurgical properties or characteristics

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DOE Contract Number:: AT(04-3)-189

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; producing; microporous; joints; metal; bodies; tungsten; placed; contact; molybdenum; tantalum; niobium; vanadium; rhenium; atoms; diffusion; coefficient; metals; heated; migrate; rate; leaving; voids; heating; continued; interconnected; diffusion coefficient; producing microporous; metal bodies; /148/228/376/976/

Citation Formats


                    Danko, Joseph C. Method of producing microporous joints in metal bodies.  United States: N. p., 1982. 
        Web.

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                    Danko, Joseph C. Method of producing microporous joints in metal bodies.  United States.

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                    Danko, Joseph C. Fri .  
        "Method of producing microporous joints in metal bodies".  United States.  https://www.osti.gov/servlets/purl/864430.

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@article{osti_864430,

  title        = {Method of producing microporous joints in metal bodies},

  author       = {Danko, Joseph C},

  abstractNote = {Tungsten is placed in contact with either molybdenum, tantalum, niobium, vanadium, rhenium, or other metal of atoms having a different diffusion coefficient than tungsten. The metals are heated so that the atoms having the higher diffusion coefficient migrate to the metal having the lower diffusion rate, leaving voids in the higher diffusion coefficient metal. Heating is continued until the voids are interconnected.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1982},

  month        = {1}

}

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