An experimental study of vaporization in high-velocity impact

Details An experimental study of vaporization in high-velocity impact An experimental study of vaporization in high-velocity impact

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988geokh.....1698i&link_type=abstract

Geokhimiia (ISSN 0016-7525), Dec. 1988, p. 1698-1707. In Russian.

Computer Science

Hypervelocity Impact, Minerals, Planetary Evolution, Vaporizing, Condensates, Mass Spectroscopy, Metal Oxides, Vapor Phases

Scientific paper

Data are presented on the composition of vapor formed in high-velocity impacts of spherical projectiles, shot with velocities of 5-6 km/sec at targets made of basalt, quartzite, and obsidian, using a two-stage light-gas gun. It was found that about 10 percent of the projectile mass was vaporized after the impact. The results of total and layer-by-layer mass-spectrometry analyses of the condensate films indicated that the composition of the vapor phase differed markedly from that of the targets, with elementary components being predominant in high-temperature vapors. The results also indicated the possibility of the presence of AlO, MgO, CaO, and SiO.

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