Abstract
Cover Photograph: Small angle X‐ray scattering images of MgAl2O4 irradiated by swift heavy ions (SHI) of 100 MeV Xe to a fluence of 1 × 1013 cm–2. (a) The sample was set with the X‐ray beam incident parallel to the direction of SHI irradiation, whereas (b‐d) the sample was tilted to 1°, 5°, and 15°, respectively, with respect to the X‐ray beam. The two vertical lines and central spot without intensities visible in each image are gaps due to the detector module edge and the catcher for the incident X‐ray beam, respectively. Analyses on these images showed that the defects induced by the SHIs were cylindrical shape ones (ion tracks) with a diameter of 5.1±1.4 nm, and that cations at tetrahedral and octahedral sites inside the ion tracks were significantly disordered. Cover Credit: Satoru Yoshioka, Kyushu University. DOI;10.1111/jace.17101. image 2019 ACerS Ceramographic Exhibit & CompetitionCategory: Underrgraduate, 2nd Place image
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