Heating and vaporization during hypervelocity particle impact

Details Heating and vaporization during hypervelocity particle impact Heating and vaporization during hypervelocity particle impact

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978p%26ss...26..463e&link_type=abstract

Planetary and Space Science, vol. 26, May 1978, p. 463-467.

Physics

16

Gas Temperature, Hypervelocity Impact, Light Emission, Particle Collisions, Transient Heating, Vaporizing, Emission Spectra, Luminous Intensity, Pressure Effects, Spectral Energy Distribution, Temperature Measurement

Scientific paper

Temperatures of the vapour produced during hypervelocity particle impacts are estimated from measurements of the spectra of impact light flashes. Temperatures between 2500 and 5000 K, depending on the impact velocity, were calculated. Measurements of the light flash intensity as a function of residual gas pressure in the target chamber are shown. From the increase of the light intensity with increasing pressure, the number of atoms vaporized during the impact process was estimated.

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