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Title: Brazing method

Abstract

There is disclosed a positive cathode electrode structure formed by brazing a thin porous membrane to a backing material by preselecting a predetermined area of the thin porous membrane and thereafter providing a braze flow barrier throughout the remainder of the membrane and electrolessly plating a nickel-phosphide alloy on the backing material, or in this case the honeycomb structure. The preselected area of the thin porous membrane is placed in intimate contact with the electrolessly plated portion of the backing material and heated to elevated temperatures in the absence of oxygen to form a brazed joint limited to a preselected area. If the braze flow barrier is provided by application of a liquid organic solvent, then the organic solvent is driven off by maintaining the thin porous membrane at elevated temperatures for an extended period of time prior to the brazing operation.

Inventors:
 [1];  [2];  [3]
  1. (Simi, CA)
  2. (Encino, CA)
  3. (Schaumburg, IL)
Issue Date:
OSTI Identifier:
864024
Patent Number(s):
4293089
Application Number:
06/037,076
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
W-31109-ENG
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
brazing; method; disclosed; positive; cathode; electrode; structure; formed; porous; membrane; material; preselecting; predetermined; thereafter; providing; braze; flow; barrier; throughout; remainder; electrolessly; plating; nickel-phosphide; alloy; honeycomb; preselected; placed; intimate; contact; plated; portion; heated; elevated; temperatures; absence; oxygen; form; brazed; joint; limited; provided; application; liquid; organic; solvent; driven; maintaining; extended; period; time; prior; operation; honeycomb structure; flow barrier; time prior; porous membrane; structure formed; electrode structure; elevated temperatures; organic solvent; elevated temperature; intimate contact; cathode electrode; extended period; liquid organic; electrolessly plated; comb structure; /228/

Citation Formats

McCormick, James T., Ferry, Paul B., and Hall, John C. Brazing method. United States: N. p., 1981. Web.
McCormick, James T., Ferry, Paul B., & Hall, John C. Brazing method. United States.
McCormick, James T., Ferry, Paul B., and Hall, John C. Tue . "Brazing method". United States. https://www.osti.gov/servlets/purl/864024.
@article{osti_864024,
title = {Brazing method},
author = {McCormick, James T. and Ferry, Paul B. and Hall, John C.},
abstractNote = {There is disclosed a positive cathode electrode structure formed by brazing a thin porous membrane to a backing material by preselecting a predetermined area of the thin porous membrane and thereafter providing a braze flow barrier throughout the remainder of the membrane and electrolessly plating a nickel-phosphide alloy on the backing material, or in this case the honeycomb structure. The preselected area of the thin porous membrane is placed in intimate contact with the electrolessly plated portion of the backing material and heated to elevated temperatures in the absence of oxygen to form a brazed joint limited to a preselected area. If the braze flow barrier is provided by application of a liquid organic solvent, then the organic solvent is driven off by maintaining the thin porous membrane at elevated temperatures for an extended period of time prior to the brazing operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {10}
}

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