Location
University of Nevada, Las Vegas
Start Date
16-4-2011 10:00 AM
End Date
16-4-2011 11:30 AM
Description
We conducted a series of experiments on the decompositions of the energetic materials NaBH4, NH3BH3, HMX, and RDX under different pressures using the x-ray diffraction (XRD) technique; we also studied the lesser known but high-performance explosive FOX-7’s behaviors under high pressures using the infrared spectroscopy (IR) technique. For the chemical decomposition of NaBH4 and NH3BH3 we discovered possible x-ray induced hydrogen gas generation; for the decomposition of HMX and RDX, we discovered that the decay rates of these two materials vary with pressure respectively; for the study of FOX-7’s high pressure behaviors we discovered potential phase changes and pressure induced chemical reactions as pressure is increased.
Keywords
High pressure (Science); Hydrogen – Research; Nitrogen compounds; Scission (Chemistry); Sodium borohydride; X-rays — Diffraction
Disciplines
Atomic, Molecular and Optical Physics | Biological and Chemical Physics | Physics
Language
English
COinS
HiPSEC x-ray diffraction and infrared spectroscopy studies on energetic materials under extreme conditions
University of Nevada, Las Vegas
We conducted a series of experiments on the decompositions of the energetic materials NaBH4, NH3BH3, HMX, and RDX under different pressures using the x-ray diffraction (XRD) technique; we also studied the lesser known but high-performance explosive FOX-7’s behaviors under high pressures using the infrared spectroscopy (IR) technique. For the chemical decomposition of NaBH4 and NH3BH3 we discovered possible x-ray induced hydrogen gas generation; for the decomposition of HMX and RDX, we discovered that the decay rates of these two materials vary with pressure respectively; for the study of FOX-7’s high pressure behaviors we discovered potential phase changes and pressure induced chemical reactions as pressure is increased.
Comments
Research supported by US Army RDECOM ACQCTR Contract W9011NF-05-1-0266 and DOE DE-FC88-06NA27684 Cooperative Agreements.
HPCAT is supported by CIW, CDAC, UNLV, and LLNL through funding from DOC-NNSA, DOE-BES and NSF.
Use of the APS is supported by DOE-BES, under Contract No. DE-AC02-06-CH11357.