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Surface structure of alumina ceramics during irradiation by a pulsed electron beam |
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| Authors: | V A Burdovitsin E S Dvilis A V Medovnik E M Oks O L Khasanov Yu G Yushkov |
| Institution: | 1. Tomsk State University of Control Systems and Radioelectronics, pr. Lenina 40, Tomsk, 634050, Russia 2. National Research Tomsk Polytechnic University, ul. Lenina 30, Tomsk, 634050, Russia |
| Abstract: | The structural transformations that occur in the near-surface layer in alumina ceramics during irradiation by a pulsed electron beam generated by a forevacuum plasma electron source are studied. The modification of the surface properties of the ceramics is shown to be caused by the formation of regions consisting of close-packed and identically oriented crystallites within every grain. The crystallites are elongated: their length and width are 0.5–1.5 μm and the transverse size is 0.1–0.2 μm. |
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