Electrodeposition of Dense Chromium Coatings from Molten Salt Electrolytes

Abstract

Our research has showed the feasibility by pulsed current of chromium plating on nickel, iron, 4340 alloy. All the samples had a flat surface. The morphology of the deposits were examined by electronic microscopy. All the observations confirm: the compacity of coatings with a uniformity in size of crystals. The good continuity between the deposit and the matrix. The grain size and the preferential orientation in the growth after etching of a cross section. All the trails to obtain a coating inside a nickel or 4340 alloy cylinder were always a complete check.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1991
Accession Number
ADA235978

Entities

People

  • G. Lorthioir

Organizations

  • National Center for Scientific Research

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Adhesion
  • Aqueous Solutions
  • Chromium
  • Coatings
  • Current Density
  • Diffusion Coefficient
  • Electric Contacts
  • Electrical Insulation
  • Electrochemical Reactions
  • Electrodeposition
  • Electrolysis
  • Electrolytes
  • Electron Transfer
  • Grain Size
  • Materials
  • Metals
  • Refractory Metals

Fields of Study

  • Materials science

Readers

  • Aerosol Science/Aerosol Physics
  • Materials Science and Engineering.
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene