Accession Number : AD0476132


Title :   ELECTRICAL CONDUCTIVITY OF SHOCK-HEATED AIR AND AIR PLUS TEFLON MIXTURES


Descriptive Note : Research note


Corporate Author : HELIODYNE CORP LOS ANGELES CA


Personal Author(s) : Morsell, A L


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/476132.pdf


Report Date : Jun 1965


Pagination or Media Count : 37


Abstract : The electrical conductivities of shock-heated air and air-plus-teflon mixtures were measured using a method similar to the conducting gas-magnetic field interaction method described by Lin, Resler, and Kantrowitz. All measurements were made for an initial shock-tube pressure of 1 cm Hg. The air- teflon mixture contained about 1 mole% of teflon. The shock speeds ranged from 2.93 to 5.58 mm/microsec corresponding to temperatures between 3150 to 6500 K conductivities between 0.24 and 111 mhos/m. The electron densities corresponding to these conductivity values range from less than 10 to the 11th power electrons/cc to about 10 to the 15th power electrons/cc. No difference in conductivity between the air and air-teflon mixtures was observed. Except for two conductivity values measured for very low shock speeds, all the measured values differ by less than a factor of two from theoretical values computed for pure air in equilibrium.


Descriptors :   *ABLATION , *AIR , *ELECTRON DENSITY , ELECTRICAL CONDUCTIVITY , GASES , HALOCARBON PLASTICS , HIGH TEMPERATURE , INSTRUMENTATION , MAGNETIC FIELDS , MIXTURES , PLASMAS(PHYSICS) , POWDERS , SHOCK TUBES , SHOCK WAVES


Subject Categories : Plasma Physics and Magnetohydrodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE