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Title: Electroless deposition process for zirconium and zirconium alloys

Abstract

A method is disclosed for preventing stress corrosion cracking or metal embrittlement of a zirconium or zirconium alloy container that is to be coated on the inside surface with a layer of a metal such as copper, a copper alloy, nickel, or iron and used for holding nuclear fuel material as a nuclear fuel element. The zirconium material is etched in an etchant solution, desmutted mechanically or ultrasonically, oxidized to form an oxide coating on the zirconium, cleaned in an aqueous alkaline cleaning solution, activated for electroless deposition of a metal layer and contacted with an electroless metal plating solution. This method provides a boundary layer of zirconium oxide between the zirconium container and the metal layer.

Inventors:
 [1];  [1]
  1. (Wilmington, NC)
Issue Date:
Research Org.:
General Electric Co
OSTI Identifier:
863962
Patent Number(s):
4284660
Assignee:
General Electric Company (San Jose, CA) OSTI
DOE Contract Number:  
EN-77-C-02-4473
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
electroless; deposition; process; zirconium; alloys; method; disclosed; preventing; stress; corrosion; cracking; metal; embrittlement; alloy; container; coated; inside; surface; layer; copper; nickel; iron; holding; nuclear; fuel; material; element; etched; etchant; solution; desmutted; mechanically; ultrasonically; oxidized; form; oxide; coating; cleaned; aqueous; alkaline; cleaning; activated; contacted; plating; provides; boundary; aqueous alkaline; plating solution; stress corrosion; aqueous alkali; corrosion cracking; oxide coating; zirconium alloy; inside surface; fuel material; metal layer; fuel element; nuclear fuel; deposition process; zirconium oxide; method provides; boundary layer; zirconium alloys; copper alloy; electroless deposition; method provide; metal plating; electroless metal; cleaning solution; metal embrittlement; zirconium material; holding nuclear; alloy container; /427/148/376/

Citation Formats

Donaghy, Robert E., and Sherman, Anna H. Electroless deposition process for zirconium and zirconium alloys. United States: N. p., 1981. Web.
Donaghy, Robert E., & Sherman, Anna H. Electroless deposition process for zirconium and zirconium alloys. United States.
Donaghy, Robert E., and Sherman, Anna H. Thu . "Electroless deposition process for zirconium and zirconium alloys". United States. https://www.osti.gov/servlets/purl/863962.
@article{osti_863962,
title = {Electroless deposition process for zirconium and zirconium alloys},
author = {Donaghy, Robert E. and Sherman, Anna H.},
abstractNote = {A method is disclosed for preventing stress corrosion cracking or metal embrittlement of a zirconium or zirconium alloy container that is to be coated on the inside surface with a layer of a metal such as copper, a copper alloy, nickel, or iron and used for holding nuclear fuel material as a nuclear fuel element. The zirconium material is etched in an etchant solution, desmutted mechanically or ultrasonically, oxidized to form an oxide coating on the zirconium, cleaned in an aqueous alkaline cleaning solution, activated for electroless deposition of a metal layer and contacted with an electroless metal plating solution. This method provides a boundary layer of zirconium oxide between the zirconium container and the metal layer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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