(Sm, Zr)(Co 3,4-Bis(3-nitrofurazan-4-yl) furozan (DNTF) 5-amino-1H-tetrazole CL-20 Cu DNTF Fe)z alloys JEOL MuMax3 N-oxides Ni/Al energetic structural materials RDX@FOX-7 Sun aluminum artificial neural networks as-cast state burning rate cast PBX coherent 1:5 phase combustible agent combustion pyrolysis characteristics composite explosives cook-off coronal mass ejection crystallization cyclization reaction detonation performance development trend dynamics research energetic binder GAP