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Title: Method for producing microcomposite powders using a soap solution

Abstract

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.

Inventors:
 [1];  [2]
  1. Coker, AL
  2. Mobile, AL
Issue Date:
Research Org.:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
OSTI Identifier:
870247
Patent Number(s):
5482918
Assignee:
United States of America as represented by Secretary of (Washington, DC)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; 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; /505/252/427/428/

Citation Formats

Maginnis, Michael A, and Robinson, David A. Method for producing microcomposite powders using a soap solution. United States: N. p., 1996. Web.
Maginnis, Michael A, & Robinson, David A. Method for producing microcomposite powders using a soap solution. United States.
Maginnis, Michael A, and Robinson, David A. Mon . "Method for producing microcomposite powders using a soap solution". United States. https://www.osti.gov/servlets/purl/870247.
@article{osti_870247,
title = {Method for producing microcomposite powders using a soap solution},
author = {Maginnis, Michael A and Robinson, David A},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

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