DIELECTRIC TO METAL SEAL TECHNOLOGY STUDY

Abstract

A number of seal strength tests were performed to determine the effects of plating-metalizing combinations on seal strength. Various pro portions of molybdenum and RCA S-641A metalizing mixtures as well as tungsten and RCA S-641A metalizing mixtures were tried on sapphire in order to find the optimum mixture. A series of migration studies was made, using electron beam techniques, in an effort to better understand the migration of various elements in the seals and the effect of this migration on seal strength. Compression- band window assemblies having dielectric discs made from beryllium oxide, boron nitride, magnesium fluoride, Pyroceram 9606, Pyroceram XM-1, and sapphire with a 60 degree crystal orientation were made and evaluated. Tests have verified that compression bands fabricated from Rene' 41, Waspalloy, or molybdenum will meet window design objectives.

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Document Details

Document Type
Technical Report
Publication Date
May 03, 1963
Accession Number
AD0409160

Entities

People

  • A. C. Grimm
  • P. D. Strubhar

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Assembly
  • Ceramic Materials
  • Contracts
  • Conventional Prompt Strike
  • Dielectrics
  • Electron Tubes
  • Fabrication
  • Materials
  • Measurement
  • Metal Seals
  • Molybdenum
  • Optical Materials
  • Refractory Metals
  • Test And Evaluation
  • Test Equipment
  • Tungsten

Readers

  • Internal Combustion Engine (ICE) Technology.
  • Microwave Engineering.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Directed Energy
  • Microelectronics
  • Microelectronics - Graphene