Macroscopic Subdivision of Silica Aerogel Collectors for Sample Return Missions

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Silica aerogel collector tiles have been employed for the collection of particles in low Earth orbit and, more recently, for the capture of cometary particles by NASA's Stardust mission. Reliable, reproducible methods for cutting these and future collector tiles from sample return missions are necessary to maximize the science output from the extremely valuable embedded particles. We present a means of macroscopic subdivision of collector tiles by generating large-scale cuts over several centimeters in silica aerogel with almost no material loss. The cut surfaces are smooth and optically clear allowing visual location of particles for analysis and extraction. This capability ... continued below

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Ishii, H A & Bradley, J P September 14, 2005.

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Silica aerogel collector tiles have been employed for the collection of particles in low Earth orbit and, more recently, for the capture of cometary particles by NASA's Stardust mission. Reliable, reproducible methods for cutting these and future collector tiles from sample return missions are necessary to maximize the science output from the extremely valuable embedded particles. We present a means of macroscopic subdivision of collector tiles by generating large-scale cuts over several centimeters in silica aerogel with almost no material loss. The cut surfaces are smooth and optically clear allowing visual location of particles for analysis and extraction. This capability is complementary to the smaller-scale cutting capabilities previously described [Westphal (2004), Ishii (2005a, 2005b)] for removing individual impacts and particulate debris in tiny aerogel extractions. Macroscopic cuts enable division and storage or distribution of portions of aerogel tiles for immediate analysis of samples by certain techniques in situ or further extraction of samples suited for other methods of analysis.

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PDF-file: 14 pages; size: 0 Kbytes

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  • Journal Name: Meteoritics and Planetary Science; Journal Volume: 41; Journal Issue: 2

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  • Report No.: UCRL-JRNL-215638
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 885140
  • Archival Resource Key: ark:/67531/metadc892831

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • September 14, 2005

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  • Sept. 23, 2016, 2:42 p.m.

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  • Dec. 6, 2016, 12:49 p.m.

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Ishii, H A & Bradley, J P. Macroscopic Subdivision of Silica Aerogel Collectors for Sample Return Missions, article, September 14, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc892831/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.