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In the present work, we perform a few shock-wave-processing experiments on typical ceramic materials of β-MnMoO4 (P2/c) by the exposure of 0, 100 and 200 shocks, respectively, and investigated their structural, optical and morphological features to materialize the effect of shock waves. Under shocked conditions, the title sample does not undergo any crystallographic phase transitions of either to α or to ω phases. However, several modifications are noticed in the mother phase such that the diffraction intensity ratio of (1-11)/(111) is found to have increased with respect to the number of shock pulses and the observed values are 0.85, 1.07 and 1.36 for the exposure of 0, 100, 200 shocks, respectively. Under the 200-shocked condition, the sample's intensity ratio is found to be closely matched to the standard pattern of the test sample with the P2/c space group. In morphological aspects, the control sample's wolframite structure has slight morphological deformations whereas the 200-shocked sample has an almost ideal morphology of the wolframite structure. Optical property results demonstrate a slight enhancement of the optical transmittance in the UV–Visible and NIR regions along with a blue shift at the 200-shocked condition. The above-mentioned analytical results reveal that the applied shock waves have effectively induced the thermal softening process, reducing the lattice and surface stresses on the test sample. A detailed discussion on the triangle relation of the structure-morphology-property of the control and shocked samples is provided.

Even slight changes occurring in the lattice positions of solid materials enforced by the external forces may give rise to remarkable results in the crystallographic nature. The materials which undergo phase‐change without modifying their overall chemistry are the prominent candidates to be the driving forces for the applications involving phase transitions. In the present context, the authors present and demonstrate the switchable phase transition occurring between crystalline and amorphous nature of cadmium sulfate octahydrate single crystals (3CdSO4·8H2O) impacted by shock waves with which the transition is authenticated via diffraction, vibrational and optical spectroscopic techniques such as powder X‐ray diffractometry, Raman and UV‐Vis spectral analyses. Based on the results attained from diffraction and spectroscopic analyses, it is observed that the switchable phase transition sequence is crystalline–crystalline–amorphous–crystalline–crystalline with respect to the control, one, two, three, and four shock‐wave‐loaded conditions, respectively. Due to the outstanding switching behavior, the title material is strongly suggested for the applications of molecular switching and optical data storage systems. [ABSTRACT FROM AUTHOR]

Herein, the crystallographic phase stability of the polycrystalline sample of sodium sulfate (Na2SO4) crystal at dynamic shocked conditions is reported and the phase stability profile of this sample with respect to the number of shock pulses is drawn from the outcomes of the X‐ray diffraction and Raman spectroscopic results. Interestingly, the polycrystalline sample does not undergo any high‐temperature polymorphic phases even at 100 shocked conditions. Note that the single‐crystalline Na2SO4 sample does undergo the crystallographic phase transition at dynamic shocked conditions. Based on the overall observed data, the polycrystalline sample has high shock resistance compared to that of the single‐crystalline sample and the obtained results are discussed elaborately. In addition to that, the present work can provide a shadow of light on the flow stress occurring on materials due to the influence of shock waves with respect to their existing state. [ABSTRACT FROM AUTHOR]