Fundamental Research Directed to Advanced High Temperature Coating Systems Beyond the Current State-of-the-Art Systems.

Abstract

The oxidation behavoir of Ni-7.5 Si alloys has been studied in oxygen over the temperature range from 950 to 1150 deg C. The alloys exhibit significant transient oxidation but following this period oxidize at rates which are similar to those for A1203-forming systems. This slow rate is apparently due to the formation of sealing layer of Si02 at the alloy/scale interface. The sealing layer appears to be slightly permeable to Ni which results in continued formation of Ni0 at the scale gase interface.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1982
Accession Number
ADA117845

Entities

People

  • F. S. Pettit
  • Gerald H. Meier

Organizations

  • University of Pittsburgh

Tags

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Adhesion
  • Diffraction
  • Electrons
  • Elements
  • Emission
  • High Temperature
  • Ion Implantation
  • Materials
  • Materials Engineering
  • Oxidation Resistance
  • Oxide Films
  • Polishing
  • Spectra
  • Surface Properties
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Surface Engineering/Surface Coating Technology.
  • Thin Film Deposition Science.