STP596: ESCA Studies of Nickel-Boron Electroless Coatings

    Swingle, RS
    Research chemist, ESCA applications chemist, and senior development specialist, Experimental Station, E. I. du Pont de Nemours and Company, Wilmington, Del.

    Ginnard, CR
    Research chemist, ESCA applications chemist, and senior development specialist, Experimental Station, E. I. du Pont de Nemours and Company, Wilmington, Del.

    Madden, GI
    Research chemist, ESCA applications chemist, and senior development specialist, Experimental Station, E. I. du Pont de Nemours and Company, Wilmington, Del.

    Pages: 11    Published: Jan 1976


    Abstract

    Electron spectroscopy for chemical analysis (ESCA) has been used to study the surface chemistry of electroless nickel-boron coatings. Changes in relative surface composition and element oxidation state were observed for boron, nickel, thallium, and sulfur as the coating was heated at 10-5 torr and heated in air. Under these conditions, boron was more easily oxidized than nickel, accounting for the oxidation resistance of the coating as compared to nickel metal. A small portion of sulfate stabilizer in the coating bath was reduced to sulfide and codeposited during the electroless plating process.

    Keywords:

    spectroscopy, coatings, surface chemistry, electron spectroscopy for chemical analysis, nickel-boron, electroless, X-ray photoelectron


    Paper ID: STP39058S

    Committee/Subcommittee: E42.03

    DOI: 10.1520/STP39058S


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