Lead and Cadmium free Electroless Nickel for End-of-Life Vehicle Directive

摘要

The End-of-Life Vehicle Directive (ELV) is designed to remove certain hazardous materials from automobiles and their components. These substances are hexavalent chromium, lead, cadmium and mercury. Typical electroless nickel formulations contain lead and cadmium for stability and brightness and these elements readily co-deposit into the EN coating. This paper will discuss a lead free high phosphorus and lead and cadmium free mid-phosphorus processes. Deposit properties and solution performance of the lead and cadmium free chemistries will be discussed and compared to conventional EN chemistries.