Abstract—
Accumulation of microcracks in response to point impact damage in MgAl2O4 ceramics doped with Cr3+ ions has been studied using acoustic emission measurements. The results demonstrate that the maximum crack length at a higher chromium concentration in the ceramics is smaller than that at lower doping levels. By contrast, doping with LiF (in addition to Cr3+) reduces the decrease in microcrack length caused by chromium oxide.
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This work was supported by the Russian Federation Ministry of Science and Higher Education, state research target no. 0784-2020-0022, basic research.
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Translated by O. Tsarev
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Gol’eva, E.V., Dunaev, A.A., Chmel’, A.E. et al. Effect of Doping with Chromium Oxide on the Nature of Point Impact Microdamage in MgAl2O4 Ceramics. Inorg Mater 57, 421–426 (2021). https://doi.org/10.1134/S0020168521030055
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DOI: https://doi.org/10.1134/S0020168521030055