Accession Number : ADB025728

Title :   Nitrogen Trifluoride (NF3) Oxidizer Systems Design Criteria.

Descriptive Note : Final rept. 1 Aug 76-30 Nov 77 on Phase 2,


Personal Author(s) : Vander Wall,E. M. ; Anderson,R. E. ; Schaplowsky,R. R. ; Cabeal,J. A. ; Freitag,T. A.

Report Date : DEC 1977

Pagination or Media Count : 271

Abstract : The chemical compatibility of nitrogen trifluoride was experimentally determined with 29 metallic materials and 22 non-metallic materials. Twelve types of tests were used in the determination; cleaning and passivation evaluation, static exposure tests, fracture mechanics/toughness tests, gaseous flow at high temperatures, adiabatic compression tests, mechanical impact test, liquid flow impact tests, screening tests, disposal tests, nitrogen trifluoride chemical analyses, water-hammer tests and passivation film evaluation. Five common contaminants were included in the tests in order to determine their effect on chemical compatibility. Static exposure conditions ranged in temperature from 195 to 344 K and in pressure from 3.45 to 17.24 MN/sq m.

Descriptors :   *Nitrogen compounds, *Fluorides, *Liquid rocket oxidizers, Metals, Nonmetals, Compatibility, Reaction kinetics, Cleaning, Passivity, Exposure(General), Static tests, Fracture(Mechanics), Adiabatic gas flow, Compressive properties, Impact tests, Waste disposal, Water hammer, Stainless steel, Nickel alloys

Subject Categories : Inorganic Chemistry
      Liquid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE