Preparation of superconductor precursor powders
- Littleton, CO
- Evergreen, CO
A process for the preparation of a precursor metallic powder composition for use in the subsequent formation of a superconductor. The process comprises the steps of providing an electrodeposition bath comprising an electrolyte medium and a cathode substrate electrode, and providing to the bath one or more soluble salts of one or more respective metals, such as nitrate salts of thallium, barium, calcium, and copper, which are capable of exhibiting superconductor properties upon subsequent appropriate treatment. The bath is continually energized to cause the metallic particles formed at the electrode to drop as a powder from the electrode into the bath, and this powder, which is a precursor powder for superconductor production, is recovered from the bath for subsequent treatment. The process permits direct inclusion of thallium in the preparation of the precursor powder, and yields an amorphous product mixed on an atomic scale to thereby impart inherent high reactivity. Superconductors which can be formed from the precursor powder include pellet and powder-in-tube products.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Assignee:
- Midwest Research Institute (Kansas City, MO)
- Patent Number(s):
- US 5413987
- OSTI ID:
- 869877
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
superconductor
precursor
powders
process
metallic
powder
composition
subsequent
formation
comprises
steps
providing
electrodeposition
bath
comprising
electrolyte
medium
cathode
substrate
electrode
soluble
salts
respective
metals
nitrate
thallium
barium
calcium
copper
capable
exhibiting
properties
appropriate
treatment
continually
energized
particles
formed
drop
production
recovered
permits
direct
inclusion
yields
amorphous
product
mixed
atomic
scale
impart
inherent
reactivity
superconductors
pellet
powder-in-tube
products
soluble salts
process permits
metallic particles
superconductor precursor
process comprises
precursor powder
soluble salt
precursor powders
metallic powder
nitrate salts
substrate electrode
subsequent formation
subsequent appropriate
bath comprising
atomic scale
particles formed
electrodeposition bath
permits direct
articles formed
appropriate treatment
nitrate salt
respective metal
superconductor product
precursor metallic
powder composition
product mix
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