Flow via dislocations in ideal glasses
- 1 February 1973
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 44 (2) , 675-679
- https://doi.org/10.1063/1.1662243
Abstract
Dislocation lines with variable Burgers vectors can exist in glasses and there is now experimental evidence for this, especially in metallic glasses. The kinematics and dynamics of their motion is discussed. It is suggested that dilatance at the core of a moving dislocation determines the viscous drag that acts on it in an ideal glass; and, this is discussed in terms of free‐volume theory. Defect debris in the wake of a moving dislocation is also considered. The advantages of using dislocation theory for describing the flow of glasses are outlined.This publication has 11 references indexed in Scilit:
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