Fig. 4

SEM images of the uncoated RDX (a), RDX/MUF-1 (b), RDX/MUF-2 (c), and RDX/MUF-3 (d); corresponding images with low magnification are inserted
SEM images of the uncoated RDX (a), RDX/MUF-1 (b), RDX/MUF-2 (c), and RDX/MUF-3 (d); corresponding images with low magnification are inserted