Characterization of Russian ballistic furnace shells

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The authors received another batch of polystyrene ballistic furnace shells on December 4, 1998. Assigned the batch number of LSC012, it consisted of three cassettes containing 36 shells in each cassette. A group of 27 of the shells were selected for characterization that ranged in diameter from 1880 to 1780 {micro}m. There were two shells with a diameter above 1900 {micro}m, but they were too fragile and did not survive initial handling. For characterization, they examined the shells through a stereo microscope, measured diameter and sphericity on RACI, and weighed a subset of the 27 shells that did not have ... continued below

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Fearon, E February 18, 1999.

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The authors received another batch of polystyrene ballistic furnace shells on December 4, 1998. Assigned the batch number of LSC012, it consisted of three cassettes containing 36 shells in each cassette. A group of 27 of the shells were selected for characterization that ranged in diameter from 1880 to 1780 {micro}m. There were two shells with a diameter above 1900 {micro}m, but they were too fragile and did not survive initial handling. For characterization, they examined the shells through a stereo microscope, measured diameter and sphericity on RACI, and weighed a subset of the 27 shells that did not have large particles or polymer shards adhered to the outside in order to calculate wall thickness. They then selected the cleanest and most spherical shells for Sphere Mapping. This batch of shells has about the same physical appearance as the one they documented August 26, 1998. There were some shells with polymer shards adhered to the outside, a few large vacuoles or large particle embedded in the polymer wall, and some with a scattering of small black particles on the outside. There were no swirls in the shell walls. As mentioned in the previous report, each shell is measured with the RACI system in three orthogonal views. They now have new analysis software on RACI that returns the mode two amplitude of the sphere radius vs. angle of rotation around the edge of the shadowgram of the shell. From this they report the maximum radius out-of-round, the largest of the three different orientations.

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1.0 Megabytes pages

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  • Other Information: PBD: 18 Feb 1999

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  • Report No.: UCRL-ID-133927
  • Report No.: DP0211000
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/8497 | External Link
  • Office of Scientific & Technical Information Report Number: 8497
  • Archival Resource Key: ark:/67531/metadc784820

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  • February 18, 1999

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  • Dec. 3, 2015, 9:30 a.m.

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  • May 6, 2016, 3:15 p.m.

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Fearon, E. Characterization of Russian ballistic furnace shells, report, February 18, 1999; California. (digital.library.unt.edu/ark:/67531/metadc784820/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.