The penetration limit of thin films

Details The penetration limit of thin films The penetration limit of thin films

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980p%26ss...28..321p&link_type=abstract

Planetary and Space Science, vol. 28, Mar. 1980, p. 321-325, 327-331.

Other

10

Metal Films, Micrometeoroids, Penetration, Polymeric Films, Radiation Counters, Thin Films, Helios Satellites, Hypervelocity Impact, Particle Mass, Projectile Cratering, Satellite-Borne Instruments

Scientific paper

One sensor of the Helios micrometeoroid experiment is covered by a thin film consisting of 3000-A parylene and 750-A aluminum; micro-meteoroids must penetrate this film before they are detected. Simulation experiments are carried out, showing a strong dependence of the penetration limit on the projectile densities. These results are used (Gruen et al., 1980) to explain the observed effect in the Helios data. First, results from deceleration experiments are given, then the penetration limit of the Helios film is determined. Finally, the Helios results are compared with those from other penetration studies. An amended penetration formula is derived.

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