The Elusive Coefficients of Thermal Expansion in PBX 9502

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Description

PBX 9502 has been in war reserve service for over two decades. Ninety-five percent of the solid phase of this insensitive high explosive is composed of energetic crystallites designated as TATB (1,3,5-triamino-2,4,6-trinitrobenzene), held together by the remaining solid fraction--an inert, polymeric binder named Kel-F 800. The unusual combination of extreme insensitivity and adequate performance characteristics is not the only enigmatic feature of such TATB-based materials. In this report, we describe the difficulty and progress to date in reliably determining the coefficients of thermal expansion for consolidated components of PBX 9502. We provide bulk linear coefficient of thermal expansion (CTE) values ... continued below

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36 pages

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Skidmore, C.B.; Butler, T.A. & Sandoval, C.W. May 1, 2003.

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Description

PBX 9502 has been in war reserve service for over two decades. Ninety-five percent of the solid phase of this insensitive high explosive is composed of energetic crystallites designated as TATB (1,3,5-triamino-2,4,6-trinitrobenzene), held together by the remaining solid fraction--an inert, polymeric binder named Kel-F 800. The unusual combination of extreme insensitivity and adequate performance characteristics is not the only enigmatic feature of such TATB-based materials. In this report, we describe the difficulty and progress to date in reliably determining the coefficients of thermal expansion for consolidated components of PBX 9502. We provide bulk linear coefficient of thermal expansion (CTE) values for PBX 9502 consolidated to a density of approximately 1.890 g/cm{sup 3} and offer a simple set of equations for calculating dimensional changes for temperatures from 218 to 347 K (-55 C to 74 C).

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36 pages

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OSTI as DE00809945

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  • Other Information: PBD: 1 May 2003

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  • Report No.: LA-14003
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/809945 | External Link
  • Office of Scientific & Technical Information Report Number: 809945
  • Archival Resource Key: ark:/67531/metadc737361

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  • May 1, 2003

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • March 21, 2016, 1:43 p.m.

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Skidmore, C.B.; Butler, T.A. & Sandoval, C.W. The Elusive Coefficients of Thermal Expansion in PBX 9502, report, May 1, 2003; New Mexico. (digital.library.unt.edu/ark:/67531/metadc737361/: accessed November 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.