23.2.2 Morphological Characterization Ammonium perchlorate were firstly investigated using a Hirox high magnification (350–7000 ) optical microscope to assess the surrogate crystal size distribution. The size distribution of ammonium perchlorate crystals can be observed with associated average length scales of ~180 μm in Fig. 23.2. A NeoScope JCM-5000 Benchtop scanning electron microscope was used to conduct fracture surface topography characterization of neat and MWNTs-ammonium perchlorate-epoxy hybrid composites after mechanical testing. Fig. 23.1 As-produced, randomly oriented 0.5 wt% MWNT-70 wt% ammonium perchlorate-epoxy hybrid composites 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0 30 60 90 120 150 180 210 240 270 300 330 360 390 Volume Fraction Particle Size (micron) b a Fig. 23.2 (a) Ammonium perchlorate crystals size distribution correlated to 59 vol.% and (b) SEM micrograph of NH4ClO4 23 In-Situ Sensing of Deformation and Damage in Nanocomposite Bonded Surrogate Energetic Materials 195
RkJQdWJsaXNoZXIy MTMzNzEzMQ==