Accession Number:

ADA357557

Title:

Microwave Dielectric Properties of XM46 and a Surrogate Liquid Propellant

Descriptive Note:

Final rept. May-Oct 96

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1998-10-01

Pagination or Media Count:

42.0

Abstract:

The microwave dielectric properties of liquid propellant LP XM46 were determined at room temperature from 2 to 20 GHz using a dielectric probe technique. The dielectric constant permittivity of LP was determined in support of possible studies of the feasibility of using microwave energy to preheat LP for more consistent electric ignition in regenerative liquid propellant guns RLPG. The dielectric properties would also be important in future investigations of the possible development of a safer and more environmentally friendly over current energetic material-based primers microwave energy-based LP ignition technique for conventional solid propellants. A surrogate liquid with similar dielectric properties was also developed using water, denatured alcohol, and potassium nitrite KNO2, which is not caustic or reactive like LP and can be more safely employed in feasibility studies of the use of microwaves in preheating or ignition of LP. This report details the dielectric probe technique for measuring the dielectric constants of liquids such as XM46 LP and the development of the surrogate liquid with matching dielectric properties for use in microwave heatingignition research and development.

Subject Categories:

  • Ammunition and Explosives
  • Electricity and Magnetism
  • Liquid Rocket Propellants
  • Guns

Distribution Statement:

APPROVED FOR PUBLIC RELEASE