CERAMIC TO METAL SEALS FOR HIGH-TEMPERATURE THERMIONIC CONVERTERS

Abstract

The first quarter of a one year program to develop improved ceramic to metal seals for use in thermionic converters is reported. The objective of this program is to develop seals which are capable of long life at 1500 C in cesium and vacuum environments, and to extend the sealing techniques developed to materials which are capable of long life at temperatures in excess of 1500 C. The project was divided as follows: development of seals between high purity alumina and molybdenum; development of ceramic-metal composite materials from which converter envelopes can be fabricated with controlled gradiation of composition throughout the envelope body; study of refractory materials, analysis of materials systems occurring in seal areas, and optimization of particular characteristics of material systems utilized; and study of material systems. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1963
Accession Number
AD0294155

Entities

People

  • M. L. Dring

Tags

DTIC Thesaurus Topics

  • Advanced Materials
  • Composite Materials
  • Converters
  • Heat Resistant Materials
  • High Temperature
  • Long Life
  • Materials
  • Metal Matrix Composites
  • Metal Seals
  • Metals
  • Refractory Materials
  • Thermionic Converters

Readers

  • Reinforced Composite Materials
  • Thermal Physics or Thermal Science.
  • Thin Film Deposition Science.