CHARACTERIZATION OF THERMALLY DAMAGED LX-17

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Thermal damage was applied to LX-17 at 190 C for several hours. The damaged LX-17 samples, after cooled down to room temperature, were characterized for their material properties (density, porosity, permeability, moduli), safety, and performance. Weight losses upon thermal exposure were insignificant (< 0.1% wt.). The damaged LX-17 samples expanded, resulting in a bulk density reduction of 4.3%. Subsequent detonation measurements (cylinder tests) were conducted on the thermally-damaged LX-17 samples. The results showed that the fractions of damaged LX-17 reacted were slightly lower than those of pristine LX-17. The thermally damaged LX-17 had a detonation velocity of 7.315 mm/{micro}s, lower ... continued below

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Hsu, P C July 11, 2007.

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Thermal damage was applied to LX-17 at 190 C for several hours. The damaged LX-17 samples, after cooled down to room temperature, were characterized for their material properties (density, porosity, permeability, moduli), safety, and performance. Weight losses upon thermal exposure were insignificant (< 0.1% wt.). The damaged LX-17 samples expanded, resulting in a bulk density reduction of 4.3%. Subsequent detonation measurements (cylinder tests) were conducted on the thermally-damaged LX-17 samples. The results showed that the fractions of damaged LX-17 reacted were slightly lower than those of pristine LX-17. The thermally damaged LX-17 had a detonation velocity of 7.315 mm/{micro}s, lower than that (7.638 mm/{micro}s) of pristine LX-17. Detonation energy density for the damaged LX-17 was 5.08 kJ/cm{sup 3}, about 9.0% lower than the detonation energy density of 5.50 kJ/cm{sup 3} for the pristine LX-17. The break-out curves showed reaction zone lengths for pristine LX-17 and damaged LX-17 were similar but the damaged samples had ragged detonation fronts.

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PDF-file: 13 pages; size: 1.6 Mbytes

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  • Presented at: 35th Annual Conference of the North American Thermal Analysis Society, East Lansing, MI, United States, Aug 26 - Aug 29, 2007

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  • Report No.: UCRL-CONF-232720
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 920880
  • Archival Resource Key: ark:/67531/metadc901517

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  • July 11, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 22, 2016, 10:20 p.m.

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Hsu, P C. CHARACTERIZATION OF THERMALLY DAMAGED LX-17, article, July 11, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc901517/: accessed August 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.