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Journal article

Dislocation Link Length Distribution in Creep-Deformed Magnesium Oxide

From

Nano-Microstructures in Materials, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1

Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2

Risø National Laboratory for Sustainable Energy, Technical University of Denmark3

A method for measurement of dislocation link length distribution (i.e. distribution of spacings between connected nodes) from transmission electron micrographs is given. The method is based on measurements of projected lengths of all links fully situated in the foil. By statistical corrections this two-dimensional distribution is converted to a three-dimensional distribution.

The method has been applied to specimens of creep-deformed, polycrystalline MgO and an empirical equation for the distribution has been found. Also the influence of non-uniformity of the Frank network on the magnitude of β in the equation Lav = β√ρ is considered.

Language: English
Year: 1973
Pages: 1495-1501
ISSN: 18780768 and 00016160
Types: Journal article
DOI: 10.1016/0001-6160(73)90179-X

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