Preparation and explosive properties of azo- and azoxy-furazans

Reactive flow calibration for diaminoazoxyfurazan (DAAF) and comparison with experiment

“…The fraction reacted λ, is then determined by (2). It has been shown that for sufficiently resolved mesh (small zone sizes), (1) reduces to (3). In (1-3), the parameters M, X, Z, P R , and P l are calibrated based on experimental data.…”

“…This quality could make DAAF based explosives attractive for use in insensitive munitions. Outputs obtained using three HVRB parameter sets are compared to data [1] in Figure 2. The dotted black line in Figure 2 is a least squares fit to data and the solid black line is the output obtained with HVRB, this version is called 'DAAF' in the Figure 2 legend.…”

“…CTH calculations were performed using adaptive mesh refinement (AMR) with zones as small as 8 µm. With sufficiently refined zoning, wedge test data [1] were then used to calibrate parameters for use with the HVRB model as described in the CTH reference manuals.…”

“…The explosive diaminoazoxyfurazan (DAAF) has been previously shown to have a number of interesting properties [1]. To briefly summarize the literature DAAF has a small failure diameter (≈1.5 mm) and is relatively insensitive to low level mechanical stimulus, friction, and spark.…”

1H, 13C and 15N Nuclear Magnetic Resonance Analysis of 3,3’,4,4’-Diaminoazoxyfurazan Obtained by Oxidation of 3,4-Diaminofurazan with Peroxyformic Acid

“…In DAAF, high detonation parameters (7.93 km/s, P CJ 30.6 GPa) are combined with low sensitivity to mechanical stimuli (friction 360 N, impact >15 J) and a low critical diameter of detonation (< 3.0 mm) [2]. Detailed studies of the detonation parameters were conducted by the Chavez group [3].…”