A compatibility study of containment materials in FEFO, bis-(2-fluoro-2,2-dinitroethyl) formal

Technical Report · Wed Feb 01 00:00:00 EST 1995

DOI:https://doi.org/10.2172/10117732· OSTI ID:10117732

Shepodd, T J; Goods, S H ^[1]; Moddeman, W E; Foster, P

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1. Sandia National Labs., Livermore, CA (United States)

We report on a program to evaluate the compatibility of energetic fluids with candidate containment materials. The energetic fluids are constituents of various extrudable explosives developed by Lawrence Livermore National Laboratory. These paste-like explosives consist of explosive particulates (HMX, TATB for example) suspended in mixtures of energetic liquids and are designed to remain extrudable over a wide temperature range for many years. It is important to preclude or minimize interactions between the constituents of the paste and the containment materials since such interactions could result in decreased reliability or failure of the containment vessel as well as intrinsic changes in the flow or explosive characteristics of the paste. In this report we focus on one specific paste formulation: RX-52-AE (Transferable Insensitive Explosive, TIE), composed principally of the solid explosive TATB and the energetic liquid, FEFO. Compatibility between a number of organic and metallic materials with neat FEFO has been evaluated. The 300 series stainless steels, Al 6061-T6, and Monel 400 showed evidence of surface attack (oxidation or pitting). Polished gold coupons became discolored and XPS analysis revealed the formation gold cyanide. Platinum, iridium, titanium, tantalum and Ta-10% W showed little evidence of reaction. Among the organic materials, the per-fluorinated materials showed only slight interaction with the FEFO while the polyethylene, polyester and Aclar{reg_sign} materials were attacked by the liquid. These interactions were manifested in changes in color, net weight gain and mechanical properties. The changes were exaggerated by higher temperatures.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 10117732
• Report Number(s): SAND-94-8508; ON: DE95007548; TRN: 95:001835
• Resource Relation: Other Information: PBD: Feb 1995
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHEMICAL EXPLOSIVES
CONTAINMENT
POLYMERS
PERFORMANCE TESTING
ALLOYS
CORROSION
METALS
IRIDIUM
MONEL 400
PLATINUM
STAINLESS STEELS
TANTALUM
TATB
TITANIUM
CONTAINMENT SHELLS
LINERS
MEMBRANES
SEALS
PITTING CORROSION
SCANNING ELECTRON MICROSCOPY
GRAVIMETRIC ANALYSIS
OXIDATION
450100
400201
CHEMICAL EXPLOSIONS AND EXPLOSIVES
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES