Method for producing microcomposite powders using a soap solution
- Coker, AL
- Mobile, AL
A method for producing microcomposite powders for use in superconducting and non-superconducting applications. A particular method to produce microcomposite powders for use in superconducting applications includes the steps of: (a) preparing a solution including ammonium soap; (b) dissolving a preselected amount of a soluble metallic such as silver nitrate in the solution including ammonium soap to form a first solution; (c) adding a primary phase material such as a single phase YBC superconducting material in particle form to the first solution; (d) preparing a second solution formed from a mixture of a weak acid and an alkyl-mono-ether; (e) adding the second solution to the first solution to form a resultant mixture; (f) allowing the resultant mixture to set until the resultant mixture begins to cloud and thicken into a gel precipitating around individual particles of the primary phase material; (g) thereafter drying the resultant mixture to form a YBC superconducting material/silver nitrate precursor powder; and (h) calcining the YBC superconducting material/silver nitrate precursor powder to convert the silver nitrate to silver and thereby form a YBC/silver microcomposite powder wherein the silver is substantially uniformly dispersed in the matrix of the YBC material.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Assignee:
- United States of America as represented by Secretary of (Washington, DC)
- Patent Number(s):
- US 5482918
- OSTI ID:
- 870247
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
producing
microcomposite
powders
soap
solution
superconducting
non-superconducting
applications
particular
produce
steps
preparing
including
ammonium
dissolving
preselected
amount
soluble
metallic
silver
nitrate
form
adding
primary
phase
material
single
ybc
particle
formed
mixture
weak
acid
alkyl-mono-ether
resultant
allowing
set
begins
cloud
thicken
precipitating
individual
particles
thereafter
drying
precursor
powder
calcining
convert
substantially
uniformly
dispersed
matrix
resultant mixture
silver nitrate
solution including
individual particle
particle form
substantially uniformly
conducting material
substantially uniform
superconducting material
single phase
precursor powder
soluble metal
composite powders
weak acid
uniformly dispersed
phase material
solution form
microcomposite powders
individual particles
selected amount
uniformly disperse
thereafter drying
microcomposite powder
producing microcomposite
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