| Autor: |
Thompson, Darla Graff, Schwarz, Ricardo B., DeLuca, Racci |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2017, Vol. 1793 Issue 1, p1-4, 4p, 4 Graphs |
| Abstrakt: |
It has long been known that compacted composites containing TATB (triaminotrinitrobenzene) crystals undergo "ratchet growth," an irreversible volume expansion upon thermal cycling. A clear mechanism has not been established for this phenomenon, but is believed to arise from the highly-anisotropic CTE of TATB crystals and interactions caused by compaction. Explosive performance depends fundamentally on bulk density, so the effect may be important. PBX 9502 is a plastic bonded explosive containing 95 wt% TATB crystals. We have monitored uniaxial length changes of PBX 9502 specimens for various thermal cycles providing mechanistic insight. Post-cycled specimens were compression tested to determine if mechanical properties correlated with the detailed thermal history. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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