PETN Coarsening - Predictions from Accelerated Aging Data
Journal Article
·
· Propellants, Explosives, Pyrotechnics
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Ensuring good ignition properties over long periods of time necessitates maintaining a good level of porosity in powders of initiator materials and preventing particle coarsening. To simulate porosity changes of such powder materials over long periods of time a common strategy is to perform accelerated aging experiments over shorter time spans at elevated temperatures. In this paper we examine historical accelerated-aging data on powders of Pentaerythritol Tetranitrate (PETN), an important energetic material, and make predictions for long-term aging under ambient conditions. Lastly, we develop an evaporation-condensation- based model to provide some mechanistic understanding of the coarsening process.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE; BWXT Pantex
- DOE Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1226941
- Report Number(s):
- LLNL-JRNL-446376
- Journal Information:
- Propellants, Explosives, Pyrotechnics, Vol. 36, Issue 2; ISSN 0721-3115
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
| Explosives | book | July 2007 |
| Aging of Pentaerythritol Tetranitrate (PETN) | report | April 2009 |
Erratum: “Multilayer exchange spring media for magnetic recording” [Appl. Phys. Lett. 89, 113105 (2006)]
|
journal | October 2006 |
Erratum: “Ultraviolet and solar-blind spectral imaging with subwavelength transmission gratings” [Appl. Phys. Lett. 95, 161107 (2009)]
|
journal | November 2009 |
| Particle characterization. Quarterly report October--December, 1970 | report | December 1970 |
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