All-Aluminum Transverse Platelet Injector

Abstract

Multielement injectors for bipropellant rocket engines fabricated from photoetched aluminum platelets which are diffusion bonded to each other with the bonded faceplate assembly electron beam welded to a machined aluminum injector body. The surface contaminants as well as the inherent aluminum oxide are first removed from the platelets. The platelets are then stacked and subjected to 300 psia load at a temperature of 1070 - 1080 deg F. The pressure and temperature are maintained for three hours using a vacuum furnace evacuated to .0001 TORR or better. The finished bonded faceplate is then joined to the injector body using electron beam welding.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 25, 1978
Accession Number
ADD004677

Entities

People

  • Samuel E. Adair

Organizations

  • United States Department of the Air Force

Tags

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Aluminum Oxides
  • Assembly
  • Bonding
  • Electron Beam Welding
  • Electron Beams
  • Electrons
  • Etching
  • Fabrication
  • Manufacturing
  • Materials
  • Rocket Engines
  • Stainless Steel
  • Vacuum Furnaces
  • Weight

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Internal Combustion Engine (ICE) Technology.
  • Reinforced Composite Materials

Technology Areas

  • Directed Energy
  • Microelectronics
  • Microelectronics - Microelectromechanical Systems