Accession Number : ADA080540


Title :   A Method for the Determination of Thermal Conductivity of Propellant Materials by Differential Scanning Calorimetry.


Descriptive Note : Final rept.,


Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD


Personal Author(s) : Hillstrom,Warren W.


Report Date : DEC 1979


Pagination or Media Count : 27


Abstract : Benzoic acid, polymethylmethacrylate, polytetrafluoroethylene, and X-14 (a high energy, double-base propellant) were heated through decomposition and their thermal analysis curves compared. X-14 undergoes a pyrolytic decomposition beginning at 413 deg K and peaking at 573 deg K. The thermal conductivities of small samples of propellant and polymer were calculated from measurements of their rate of heat flow into a heat sink in a modified Differential SCANNING Calorimeter. This method will permit thermal conductivity measurements in small samples of sensitive materials, thus reducing hazards in their handling, and giving the first measurement on some very sensitive materials. (Author)


Descriptors :   *THERMAL CONDUCTIVITY, *DIFFERENTIAL THERMAL ANALYSIS, SCANNING, HAZARDS, POLYMETHYL METHACRYLATE, EXPLOSIVES, HIGH ENERGY, LABORATORY PROCEDURES, HEAT FLUX, DECOMPOSITION, PYROLYSIS, SOLID PROPELLANTS, CALORIMETERS, TETRAFLUOROETHYLENE RESINS, BENZOIC ACIDS, DOUBLE BASE PROPELLANTS.


Subject Categories : PHYSICAL CHEMISTRY
      AMMUNITION AND EXPLOSIVES
      THERMODYNAMICS


Distribution Statement : APPROVED FOR PUBLIC RELEASE