A Fundamental Understanding of the Interfacial Compatibility in Hybrid Material Systems.

Abstract

Among the problems associated with long-term high temperature service of hybrid material systems is interdiffusional compatibility of the system's component materials. Efforts in this program have focussed on several area of this problem. One of the areas being examined are alkali metal and alkali earth metal diffusion barriers. These barriers are being applied by two different methods: ion implantation and a sol suspension slurry technique. For both methods, the system being utilized as a model is the tungsten/nickel system. Preliminary results of barrier effectiveness are given. Also being studied are the interdiffusional kinetics of metal/intermetallic and intermetallic/intermetallic ternary systems. Hybrids being examined include W/Ni3AL and TiAl/Ni3AL. Keywords: Nickel aluminides, Titanium aluminide.

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Document Details

Document Type
Technical Report
Publication Date
Mar 07, 1988
Accession Number
ADA192921

Entities

People

  • John K. Tien

Organizations

  • Columbia University

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Alkali Metals
  • Chemistry
  • Composite Materials
  • Diffusion
  • High Temperature
  • Implantation
  • Ion Implantation
  • Ions
  • Kinetics
  • Materials
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Metal Matrix Composites
  • Metals
  • Turbine Blades
  • Turbines

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials
  • Surface Engineering/Surface Coating Technology.
  • Systems Analysis and Design