Accession Number : ADA298799

Title :   Process Modeling of a Novel Plasma Assisted Alloy Plating. Phase 1.

Descriptive Note : Final rept.,

Corporate Author : IONEDGE CORP FORT COLLINS CO

Personal Author(s) : Sunthankar, Mandar

PDF Url : ADA298799

Report Date : 28 FEB 1994

Pagination or Media Count : 44

Abstract : Plasma Assisted zinc cadmium alloy plating will reduce the use of cadmium and minimize hazardous waste in many plating operations. The purpose of the proposed research is to understand this dry plating process for its commercial application. In this process, the composition of the zinc cadmium alloy needs to be varied in situ as desired. Consequently, the primary objective of the Phase I effort is to study the effect of process parameters on the alloy composition. The secondary objective is to measure the lubricity of the alloy as a function of its composition. Both the primary and secondary objectives have been accomplished successfully. The fractional factorial design of experiments has been used to model the cumulative effect of dry plating process parameters on the zinc cadmium alloy composition. Steel substrates were used for alloy plating. The chemical composition was determined using Energy Dispersive Spectrometric (EDS) x ray analysis. The lubricity was measured in terms of coefficient of friction using the pin on disk method. The process model developed predicts that the alloy composition is directly proportional to the zinc source temperature. The feasibility of plating a wide range of compositions, from 8% zinc in zinc cadmium to 100% zinc, has been demonstrated. In addition, data indicates that the lubricity of a range of dry plated zinc cadmium alloys is superior to that of zinc. In conclusion, the dry zinc-cadmium alloy plating process has a promising commercial potential.

Descriptors :   *PLASMA SPRAYING, *PLATING, *CADMIUM ALLOYS, METALS, COMMERCE, X RAY DIFFRACTION, SUBSTRATES, MOISTURE CONTENT, STEEL, CHEMICAL COMPOSITION, FEASIBILITY STUDIES, LOW LEVEL, WASTE MANAGEMENT, HAZARDOUS WASTES, COMPOSITION(PROPERTY), FRICTION, ELECTROPLATING, ZINC ALLOYS.

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Coatings, Colorants and Finishes
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE