Nickel coating on copper conductors is an effective means of increasing a conductor’s resistance to corrosion and its operating temperature. These properties make it a commonly applied material in conductor coating.
The adhesion of Nickel coating test evaluates the adherence of a nickel plating to an underlying copper/ copper alloy material.
Two lengths of uninsulated conductor are tested – one wrapped closely around its diameter for eight (8) turns, and one kept straight. Both samples will undergo thermal cycling consisting of four (4) hours at elevated temperature followed by four (4) hours at room temperature for a total of ten (10) cycles. After the thermal cycling is complete, the straight sample is wound upon itself in the same manner as the first sample, and both are subject to the Continuity of Plating Test.