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1991 | 79 | 4 | 493-500
Article title

Specific Features of Strengthening Phenomena in NaCl:Eu^{2+} Crystals

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Content
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Languages of publication
EN
Abstracts
EN
Mechanical strength of europium doped NaCl crystals was studied as a function of both the dopant concentration (c_{2+}) and the kind of obstacles effective in hindering the motion of dislocations. It has been found that the yield strength (σ_{0}) of solution treated samples is determined by Snoek reorientation of both isolated dipoles and linear dimers within the stress fields of moving dislocations. The deviation of the σ_{0} (c_{2+}) plot from linearity is probably due to the presence of quadripoles cutted through the moving dislocations. Also for as- received specimens two precipitation strengthening mechanisms are postulated; these are the Kelly-Nicholson cutting and the Orowan looping, respectively.
Keywords
EN
Publisher

Year
Volume
79
Issue
4
Pages
493-500
Physical description
Dates
published
1991-04
received
1990-05-04
(unknown)
1990-08-01
Contributors
author
  • W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, pl. Katedralny 1, 50-950 Wrocław, Poland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv79z408kz
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