Process for electroless deposition of metals on zirconium materials

Patent · Sat Dec 31 23:00:00 EST 1977

OSTI ID:863103

Donaghy, Robert E ^[1]

---

1. Wilmington, NC

A process for the electroless deposition of a metal layer on an article comprised of zirconium or a zirconium alloy is disclosed. The article is activated in an aged aqueous solution comprising from about 10 to about 20 grams per liter ammonium bifluoride and from about 0.75 to about 2 grams per liter of sulfuric acid. The solution is aged by immersion of pickled zirconium in the solution for at least about 10 minutes. The loosely adhering film formed on the article in the activating step is removed and the article is contacted with an electroless plating solution containing the metal to be deposited on the article upon sufficient contact with the article.

• DOE Contract Number: EN-77-C-02-4473
• Assignee: General Electric Company (San Jose, CA)
• Patent Number(s): US 4093756
• OSTI ID: 863103
• Country of Publication: United States
• Language: English

Related Subjects

/427/148/216/252/376/
10
20
75
acid
activated
activating
activating step
adhering
aged
aged aqueous
alloy
ammonium
aqueous
aqueous solution
article
article comprised
bifluoride
comprised
comprising
contact
contacted
containing
deposited
deposition
disclosed
electroless
electroless deposition
electroless plating
film
film formed
formed
grams
immersion
layer
liter
loosely
materials
metal
metal layer
metals
minutes
pickled
plating
plating solution
process
removed
solution
solution comprising
solution containing
step
sufficient
sulfuric
sulfuric acid
zirconium
zirconium alloy
zirconium material
zirconium materials