Microstructural study of micron-sized craters simulating Stardust impacts in aluminum 1100 targets
Issue Date
2006-01-01Keywords
Northwest Africa (NWA) 856 Martian meteoriteselectron microscopy
shock metamorphism
Shocked quartz
Metadata
Show full item recordCitation
Leroux, H., Borg, J., Troadec, D., Djouadi, Z., & Hörz, F. (2006). Microstructural study of micron‐sized craters simulating Stardust impacts in aluminum 1100 targets. Meteoritics & Planetary Science, 41(2), 181-196.Publisher
The Meteoritical SocietyJournal
Meteoritics & Planetary ScienceAdditional Links
https://meteoritical.org/Abstract
Various microscopic techniques were used to characterize experimental microcraters in aluminum foils to prepare for the comprehensive analysis of the cometary and interstellar particle impacts in aluminum foils to be returned by the Stardust mission. First, scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) were used to study the morphology of the impact craters and the bulk composition of the residues left by soda-lime glass impactors. A more detailed structural and compositional study of impactor remnants was then performed using transmission electron microscopy (TEM), EDS, and electron diffraction methods. The TEM samples were prepared by focused ion beam (FIB) methods. This technique proved to be especially valuable in studying impact crater residues and impact crater morphology. Finally, we also showed that infrared microscopy (IR) can be a quick and reliable tool for such investigations. The combination of all of these tools enables a complete microscopic characterization of the craters.Type
Articletext
Language
enISSN
1945-5100ae974a485f413a2113503eed53cd6c53
10.1111/j.1945-5100.2006.tb00202.x