Cycle Testing of ACS Valves in ClF5

Abstract

The report documents the complete test program conducted to establish a seat and poppet material(s) for use in chlorine pentafluoride (ClF5) attitude control system (ACS) valves. Test results of iron, nickel, tungsten, boron and zirconium based materials in the flat-on-flat sealing concept are discussed. Additionally, a sapphire/copper lip-seal concept and thin coatings of aluminum, tungsten and chromium on substrates, previously proved to be incompatible, were evaluated. In the tests conducted under this program, two carbides of tungsten and one of boron have successfully met the helium leakage requirement after 100, 000 actuations in the ClF5 environment.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1972
Accession Number
AD0750873

Entities

People

  • Garreth J. Gunderson

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Human Systems
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Assembly
  • Attitude Control Systems
  • Chemical Synthesis
  • Chemical Vapor Deposition
  • Chemistry
  • Coatings
  • Control Systems
  • Engineers
  • Failure Mode And Effect Analysis
  • Materials
  • Materials Laboratories
  • Materials Testing
  • Measurement
  • Propellants
  • Rocket Oxidizers
  • Rocket Propulsion

Readers

  • Materials Science
  • Organic Chemistry
  • Surface Engineering/Surface Coating Technology.