Mecanismos de movilidad de dislocaciones a temperaturas medias en plomo de muy alta pureza (99.9999 %)

I. Gallego; M. L. Nó; J. San Juan

doi:10.3989/revmetalm.1998.v34.iExtra.745

Dislocation mobility mechanisms at medium temperatures in very high purity lead (99.9999 %)

Authors

I. Gallego Dpto. de Física Aplicada II. Fac. de Ciencias. Univ. del País Vasco
M. L. Nó Dpto. de Física Aplicada II. Fac. de Ciencias. Univ. del País Vasco
J. San Juan Dpto. de Física de la Materia Condensada. Fac. de Ciencias, Univ. del País Vasco

DOI:

https://doi.org/10.3989/revmetalm.1998.v34.iExtra.745

Keywords:

Internal friction, Dislocation, Pure lead

Abstract

The internal friction spectrum of high purity lead (99.9999 %) at medium temperatures has been studied. A new peak (P₁) has been found at 240 K, which has not been studied up to now. The activation energy of the process associated with F, has been determined and its experimental behaviour has also been systematically studied. The comparison between the results and the theoretical predictions of the models of dislocation mobility allows us to attribute the P₁ peak to the sliding of dislocations, controlled by the climbing of jogs induced by the diffusion of vacancies along the dislocation line. This conclusion is analogue to that obtained in previous works for the P₁v peak in very high purity aluminium (99.9999 %).

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Published

1998-05-30

How to Cite

Gallego, I., Nó, M. L., & San Juan, J. (1998). Dislocation mobility mechanisms at medium temperatures in very high purity lead (99.9999 %). Revista De Metalurgia, 34(Extra), 238–242. https://doi.org/10.3989/revmetalm.1998.v34.iExtra.745

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Issue

Vol. 34 No. Extra (1998)

Section

Articles

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