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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.

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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.

Item Type: Journal Article
Copyright Holders: 2009 Elsevier Ltd.
ISSN: 0032-0633
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetNot SetSTFC (Science & Technology Facilities Council)
Not SetNot SetFRONTIER program of the Ruprecht-Karls-Universität Heidelberg
Keywords: interplanetary dust; hypervelocity impact; interstellar dust
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 18574
Depositing User: Colin Smith
Date Deposited: 05 Oct 2009 12:19
Last Modified: 24 Feb 2016 03:57
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