Accession Number : AD0690424

Title :   IRON ELECTRODEPOSITED FROM A SULFATE-CHLORIDE ELECTROLYTE: EFFECT ON INTERNAL STRESS OF CURRENT DENSITY, TEMPERATURE, pH, AND CHLORIDE ION CONCENTRATION,

Corporate Author : DEFENCE RESEARCH ESTABLISHMENT ATLANTIC DARTMOUTH (NOVA SCOTIA)

Personal Author(s) : Levy,E. M.

Report Date : 1968

Pagination or Media Count : 8

Abstract : Internal stress in iron electrodeposited from a sulfate-chloride solution was studied at deposit thicknesses of 0.25 to 1 mil (6 to 25 micro meters) as a function of the conditions of deposition. The internal stress decreased with increasing temperature and pH, increased with increasing current density, and was virtually independent of the chloride ion concentration from 15 to 30 g/1. Except where cracking occurred, the observed stress was high during the early stages of deposition, decreased as the influence of the substrate decreased, and finally approached a limiting value determined by the composition of the cathode layer and the conditions of deposition. (Author)

Descriptors :   (*IRON, *ELECTRODEPOSITION), STRESSES, ELECTROCHEMISTRY, SULFATES, CHLORIDES, ELECTROLYTES, PH FACTOR, SURFACE PROPERTIES, TEMPERATURE, CANADA

Subject Categories : Polymer Chemistry
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE