Platinum Group Coatings for Refractory Metals

Abstract

Oxidation resistant coatings of iridium on rhenium substrates have been produced by chemical vapor deposition from an iridium acetyl acetonate starting compound. The process results in rapid buildup of iridium. Heat treatment to near the melting point of iridium causes the iridium to wet and diffuse into the rhenium surface eliminating porosity and assuring good bonding. These coatings have provided oxidation resistance at temperatures of 1850 C in air. After twenty minutes there was no evidence of deterioration. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1984
Accession Number
ADA143792

Entities

People

  • John T. Harding
  • Richard B. Kaplan
  • Robert H. Tuffias

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Alloys
  • Chemical Vapor Deposition
  • Chemistry
  • Coatings
  • Heat Energy
  • Heat Treatment
  • High Temperature
  • Materials
  • Oxidation Resistance
  • Refractory Materials
  • Refractory Metals
  • Resistance
  • Rocket Engines
  • Rocket Propulsion
  • Rockets
  • Vapor Deposition

Fields of Study

  • Chemistry

Readers

  • Surface Engineering/Surface Coating Technology.