The production of platinum-coated silicate nanoparticle aggregates for use in hypervelocity impact experiments

Hillier, Jon K.; Sestak, S.; Green, S. F.; Postberg, F.; Srama, R. and Trieloff, M. (2009). The production of platinum-coated silicate nanoparticle aggregates for use in hypervelocity impact experiments. Planetary and Space Science, 57(14-15) pp. 2081–2086.

DOI: https://doi.org/10.1016/j.pss.2009.09.019

Abstract

We present a method for producing metal-coated low-density (<~1600 kg m^?3) aggregate silicate dust particles for use in hypervelocity impact (HVI) experiments. Particles fabricated using the method are shown to have charged and electrostatically accelerated in the Max Planck Institut für Kernphysik (MPI-K) 2 MV Van de Graaff accelerator, allowing the production of impact ionization mass spectra of silicate particles (impacting at velocities ranging from <4 km s^?1 to >30 km s^?1, corresponding to sizes of >1 ?m to <0.1 ?m) using the Large Area Mass Analyser (LAMA) instrument, designed for cosmic dust detection in space. Potential uses for the coated grains, such as in the calibration of aerogel targets similar to those used on the Stardust spacecraft, are also discussed.

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About

• Item ORO ID
• 18574
• Item Type
• Journal Item
• ISSN
• 0032-0633
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  Not Set	Not Set	STFC (Science & Technology Facilities Council)
  Not Set	Not Set	FRONTIER program of the Ruprecht-Karls-Universität Heidelberg

• Keywords
• interplanetary dust; hypervelocity impact; interstellar dust
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © 2009 Elsevier Ltd.
• Depositing User
• Colin Smith