Characterization of zinc films on beryllium deposited by zincating

Journal Article · Sat Jan 01 00:00:00 EST 1977 · J. Vac. Sci. Technol.; (United States)

DOI:https://doi.org/10.1116/1.569130· OSTI ID:5682078

Larson, D T; Childs, E L; Doyle, J H; Grotzky, V K

One method that is used to prepare beryllium for electroplating is to initially deposit a thin zinc film by immersion in a zinc pyrophosphate solution (zincating). In a coatings application, poor adhesion was experienced between the zincated beryllium and electrodeposited copper. The poor results were caused by a beryllium-stainless-steel galvanic couple during zincating. Excellent adhesion was obtained once the galvanic couple was removed and beryllium was zincated at a pH of 7.5 to 8.0 and 80/sup 0/C. The effect of the galvanic couple on the morphology and surface composition of the deposited zinc film was determined. Also the relationships of the initial surface state of the beryllium and pH and temperature of the zincating bath on the properties of the films were examined using scanning-electron microscopy, energy-dispersive x-ray analysis, and Auger electron spectrosopy (AES). The depth distribution of the deposited zinc was determined using AES with sputter etching.

• Research Organization: Rockwell International, Golden, CO
• OSTI ID: 5682078
• Journal Information: J. Vac. Sci. Technol.; (United States), Vol. 14:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BERYLLIUM
ELECTROPLATING
SAMPLE PREPARATION
ZINC
SURFACE COATING
ADHESION
DEPTH
FILMS
PH VALUE
ZINC PHOSPHATES
ALKALINE EARTH METALS
DEPOSITION
DIMENSIONS
ELECTRODEPOSITION
ELECTROLYSIS
ELEMENTS
LYSIS
METALS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PLATING
ZINC COMPOUNDS
360101* - Metals & Alloys- Preparation & Fabrication