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Effect of Impurity Concentration and Plastic Deformation on Dislocation Density of KCl Crystals
Author(s) -
Suszyńska M.
Publication year - 1974
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19740091015
Subject(s) - dislocation , materials science , deformation (meteorology) , impurity , flow stress , dislocation creep , etch pit density , condensed matter physics , crystallography , composite material , etching (microfabrication) , chemistry , microstructure , physics , organic chemistry , layer (electronics)
Using the etch pit technique both the distribution and density of dislocations in undeformed and dynamically deformed nominally pure and Sr 2+ or Pb 2+ doped KCl crystals are examined. Additionally, the role of specimen geometry in the plastic deformation within the I deformation stage is determined. For all the crystals examined the relationship between screw dislocation density and plastic flow stress obeys the formula τ ⋍ ϱ sc. 1/2 .