Electroless plating bath for forming a nickel alloy coating havi

Details Electroless plating bath for forming a nickel alloy coating havi Electroless plating bath for forming a nickel alloy coating havi

1985-05-22

1987-01-13

Smith, John D.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 127, 4274431, C23C 1836

Patent

active

046362550

ABSTRACT:
An electroless plating bath for forming a nickel-phosphorus alloy coating having a high phosphorus content contains in water nickel ions, hypophosphite as a reducing agent for nickel ions, a pH adjustor, a pH buffering agent, a small amount of a stress reducing agent and tri(alkali metal) N-(2-hydroxyethyl)ethylenediamine-N, N', N'-triacetate as a first phosphorus deposition promotor. It may further contain at least one sulfate selected from ammonium sulfate, lithium sulfate, potassium sulfate and sodium sulfate as a second phosphorus deposition promotor.

REFERENCES:
patent: 3024134 (1962-03-01), Nixon
patent: 3060059 (1962-10-01), Sickles
patent: 3148072 (1964-09-01), West
patent: 3416955 (1968-12-01), Makowski
patent: 3565667 (1971-02-01), Klingspor
patent: 4483711 (1984-11-01), Harbulak

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