Fig. 5: Ferroelectricity control of chemical energy release.
From: Releasing chemical energy in spatially programmed ferroelectrics
a Schematic figure for laser-induced air shock from energetic materials study. The light from arc lamp is focused through a slit onto the first mirror. The change in the refractive index of air above the sample surface is detected by collimated light between the first and second mirrors. A knife edge is used to cut about half of the light rays. A spectrometer is used to measure the plasma emission spectrum at the same time and an IR photoreceiver records the time-resolved combustion emission. b The laser-induced shock and estimated detonation velocities of poled, unpoled, 3D printed poled, and 3D printed unpoled [Hdabco]ClO4. Error bars represent 95% confidence intervals. c Selected high-speed-video snapshots from for laser-shocked poled and 3d printed poled [Hdabco]ClO4, starting at time = 0 μs for the first frame with each subsequent frame 11.9 μs later. d Selected high-speed-video snapshots from for laser-shocked unpoled and 3d printed unpoled [Hdabco]ClO4. e IR emission for 3D printed [Hdabco]ClO4 (weight ratio = 1/5) measured during the LASEM experiments. f Temperature dependence of thermal conductivity for poled and unpoled [Hdabco]ClO4.
