Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1983-11-15
1984-07-31
Kaplan, G. L.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
204 43N, 204 351, 228211, 428670, 428671, 428675, 428680, C23C 300, C25D 356, C25D 548, B23K 120
Patent
active
044630603
ABSTRACT:
A permanently solderable palladium-nickel electroplated coating is formed on electrically conductive surfaces. The coating has a first alloy layer of 46 to 82 atomic percent palladium and 18 to 54 atomic percent nickel. This first layer is covered by a continuous second layer of 96 to 100 atomic percent metallic palladium and 0-4 atomic percent nickel. The second layer has a thickness of up to twenty angstroms. The second layer is formed by dipping the first layer in a solution of sulfuric or hydrochloric acid.
REFERENCES:
patent: 4416741 (1983-11-01), Schulze-Berge
E. I. Du Pont de Nemours and Company
Kaplan G. L.
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