Burn rates of pristine and degraded explosives at elevated temperatures and pressures

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We measure the Laminar burn rates of explosives at extreme conditions (up to 520K and 1 GPa) in a hybrid strand burner, to provide reaction rate data for prediction of violence of thermal response. Data from a series of HMX-based explosives show that explosives with high binder content (15 wt%) burn smoothly over the entire pressure range regardless of particle size, while explosives with less binder eventually transition to a rapid erratic burn 10-100 times faster. When heated to ~ 440K, an HMX formulation with fine particles and 15% binder exhibits different burning behav- ior depending on the details of ... continued below

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Chandler, J B & Maienschein, J L August 10, 1998.

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Description

We measure the Laminar burn rates of explosives at extreme conditions (up to 520K and 1 GPa) in a hybrid strand burner, to provide reaction rate data for prediction of violence of thermal response. Data from a series of HMX-based explosives show that explosives with high binder content (15 wt%) burn smoothly over the entire pressure range regardless of particle size, while explosives with less binder eventually transition to a rapid erratic burn 10-100 times faster. When heated to ~ 440K, an HMX formulation with fine particles and 15% binder exhibits different burning behav- ior depending on the details of the temperature-pressure history, apparently as a result of the {beta} {yields} {delta} phase transition in HMX. Burn rates can be increased by 1000-fold under certain conditions.

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940 Kilobytes

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  • Eleventh International Detonation (1998) Symposium, Snowmass, CO, August 31-September 4, 1998

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  • Other: DE00008164
  • Report No.: UCRL-JC-127993
  • Grant Number: W-7405-Eng-48
  • Office of Scientific & Technical Information Report Number: 8164
  • Archival Resource Key: ark:/67531/metadc740794

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Office of Scientific & Technical Information Technical Reports

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  • August 10, 1998

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  • Oct. 18, 2015, 6:40 p.m.

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  • May 6, 2016, 9:37 p.m.

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Chandler, J B & Maienschein, J L. Burn rates of pristine and degraded explosives at elevated temperatures and pressures, article, August 10, 1998; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc740794/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.