Mechanical defects and exoelectron emission from alpha alumina single crystals

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...

Full description

Saved in:
Bibliographic Details
Published in:Radiation protection dosimetry 1983, Vol.4 (3-4), p.240-242
Main Authors: Thomas, Gérard, Ingrain, Dominique
Format: Article
Language:English
Subjects:
Chemical and Process Engineering
Engineering Sciences
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0144-8420
1742-3406
DOI:10.1103/PhysRev.132.563