Accession Number : ADA190707

Title :   Durability Testing of an Iridium-Plated Storable Rocket Engine Injector.

Descriptive Note : Special rept. Sep 86-Mar 87,

Corporate Author : AIR FORCE ASTRONAUTICS LAB EDWARDS AFB CA

Personal Author(s) : Benson, Kevin R

PDF Url : ADA190707

Report Date : Sep 1987

Pagination or Media Count : 29

Abstract : A series of hot firings were conducted at the Air Force Astronautics Lab. to evaluate the durability of an iridium plated, like-doublet, storable rocket engine injector. The injector was designed for N2O4/MMH propellants and a chamber pressure of 1500 psia. Iridium plating failed to protect the injector face; however, valuable insights into the attack mechanism were gained. This report presents the results of AFAL's testing, including the analysis and evaluation of the injector orifice corrosion/erosion. Keywords: Nitrogen tetroxide; Monomethyl hydrazine; XLR-132 Engines; Liquid propellant rocket engines.

Descriptors :   *INJECTORS, *IRIDIUM, *LIQUID PROPELLANT ROCKET ENGINES, ATTACK, CORROSION, EROSION, FIRING TESTS(ORDNANCE), HIGH TEMPERATURE, METHYL HYDRAZINES, NITROGEN, ORIFICES, PLATING, PROPELLANTS, ROCKET ENGINES, STORAGE

Subject Categories : Liquid Propellant Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE