Fragmentation of Ammonium Nitrate Particles under Thermal Cycling
Abstract: Ammonium nitrate finds application in explosives and chlorine‐free slow‐burning propellants. Different phases are known for this ammonium salt, each of them featured by peculiar bulk densities. As a consequence, the variation of storage temperature induces processes of expansion‐contraction in the crystals, unless specific stabilization is performed. In this paper, a batch of raw ammonium nitrate particles has been thermally cycled between −30 °C to +60 °C and analyzed. Microscopic observations, particle size measurement, and X‐ray microtomography showed that the particles undergo a progressive fragmentation process, with opening of internal cracks and voids. The tested material halved its mass‐mean diameter after five thermal cycles. As a term of comparison, a phase‐stabilized ammonium nitrate batch was tested under the same conditions, showing no effect.
- Standort
-
Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
-
Online-Ressource
- Sprache
-
Englisch
- Erschienen in
-
Fragmentation of Ammonium Nitrate Particles under Thermal Cycling ; volume:43 ; number:3 ; year:2018 ; pages:315-319 ; extent:5
Propellants, explosives, pyrotechnics ; 43, Heft 3 (2018), 315-319 (gesamt 5)
- Urheber
-
Maggi, Filippo
Garg, Priya
- DOI
-
10.1002/prep.201700230
- URN
-
urn:nbn:de:101:1-2022091107520115788670
- Rechteinformation
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
-
15.08.2025, 07:35 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Maggi, Filippo
- Garg, Priya