CALCINATION OF ELECTROLYTIC NIOBIUM POWDER

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Tsvetnye Metally

OSTI ID:4794150

Amosov, V M

>OBIUM POWDER. V. M. Amosov. Tsvetnye Metally, An anaiysls was made of technological processes in vacuum calcination of Nb powder with high admixture contents, average granule sizes of 60 to 8 mu , and loose weights of 2.05 to 2.10 g/cm/sup 3/. Calcination of 20 x 20 x 600 mm, 1.2 kg bars of --88.0% Nb, 2.9% Ta, --5% O2, 3.35% C, 0.85% Fe, 0.35% Ni, 0.2% Ti, and 0.5% W produced plastic metal that was rolled into 0.1 mm thick strip. Before rolling the bar was cold forged and treated at 2300 deg C for 1 to 2 hours for final recrystallization and pore welding. The strip contained 99.3% (Nb + Ta), 0.03% C, 0.1% Ti, and 0.5% W. Ni and Fe were not found. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-030761
• OSTI ID: 4794150
• Journal Information: Tsvetnye Metally, Journal Name: Tsvetnye Metally Vol. Vol: 35: No. 2
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

CARBIDES
CARBON
COLD WORKING
DENSITY
DUCTILITY
GRAIN SIZE
HEAT TREATMENTS
IRON
METALS, CERAMICS, AND OTHER MATERIALS
MIXING
NICKEL
NIOBIUM
NIOBIUM ALLOYS
OXYGEN
POWDERS
PYROLYSIS
QUANTITY RATIO
RECRYSTALLIZATION
RODS
ROLLING
SHEETS
TANTALUM
TANTALUM ALLOYS
TITANIUM
TITANIUM ALLOYS
TUNGSTEN
TUNGSTEN ALLOYS
VACUUM