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Mechanical defects and exoelectron emission from alpha alumina single crystals

Abstract : Thermally stimulated exoelectron emission (TSEE) from a alumina single crystals is studied. Polished as well as stamped surfaces present almost identical TSEE effects. Nevertheless a special peak at 440°C appears in the glow curve of stamped samples only. Microscopical observations provide evidence of a relation between the appearance of this peak and fragmentation or crack propagation around the marks made on the surface.
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https://hal-emse.ccsd.cnrs.fr/emse-00610520
Contributor : Andrée-Aimée Toucas <>
Submitted on : Friday, July 22, 2011 - 11:44:17 AM
Last modification on : Wednesday, June 24, 2020 - 4:18:16 PM

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Gérard Thomas, Dominique Ingrain. Mechanical defects and exoelectron emission from alpha alumina single crystals. Radiation Protection Dosimetry, Oxford University Press (OUP), 1983, 4 (3-4), pp.240-242. ⟨10.1103/PhysRev.132.563⟩. ⟨emse-00610520⟩

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