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Title: Thermal behavior of glassy phase stabilized ammonium nitrate (PSAN) thin films

Ammonium nitrate (AN) is a high interest material because of its wide usage in propellants and explosives but can be difficult to handle from a formulation standpoint. It is soluble in many common solvents and has complex phase behavior. Here, we formulate phase stabilized AN (PSAN) films in a polymer matrix and characterize thermal and phase behavior using neutron reflectometry and ellipsometry. Our PSAN films are generally stable up to 160 °C, though we observe small material loss between 60 and 100 °C, which we attribute to solvent interactions with the PSAN. Crystallization of AN from supersaturated polymer is most common at thicker regions of the film, suggesting a critical nucleation thickness for the AN which can be avoided by making very thin films.
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  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 2352-4928; PII: S2352492815000173
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Materials Today Communications
Additional Journal Information:
Journal Volume: 3; Journal Issue: C; Journal ID: ISSN 2352-4928
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
Country of Publication:
United States
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 07 ISOTOPE AND RADIATION SOURCES; 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY LANSCE; Lujan Center; Neutron Scattering; Reflectometry; Ellipsometry; Explosives; Phase Transition; Ammonium Nitrate