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Content archived on 2022-12-23

Theoretical and experimental study of he micromechanisms of topological defects formation and motion in single crystals with deep potential relief

Objective



The collaborative research is proposed to study experimentally and theoretically the micromechanisms of the formation and motion of dislocations and dislocation kinks, taking into account they interaction with point defects those usually present in/near dislocation core. Novel experimental techniques are supposed to be used involving Intermittent Loading for the investigation of micromechanisms of dislocation kink pair formation and motion as well as Intermittent Displacement Sensing Indentation at elevated temperatures for the study of dislocation generation kinetics. Both methods are based on measurements of temporal characteristics of crystal defect structure relaxation after periodically applied stresses are removed.
The objectives of the proposed project are to achieve fundamental understanding of the processes of dislocation and dislocation kink generation under applied stress. Investigations of the kinetics of stress relaxation combined with structural studies of the deformation zone after different regimes of Intermittent Displacement Sensing Indentation will allow us to obtain important information about processes determining the generation of dislocations and dislocation kinks in crystals.

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Programme(s)

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Topic(s)

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Call for proposal

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Funding Scheme

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Coordinator

University of Sussex
EU contribution
No data
Address

BN1 9QJ Falmer Brighton
United Kingdom

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Total cost

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Participants (3)

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