The observation of vacancy sources in metals
- 1 January 1958
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 3 (25) , 97-99
- https://doi.org/10.1080/14786435808243230
Abstract
Helium atoms have been injected into copper by alpha-particle bombardment in a cyclotron. On subsequent heating, the helium precipitates out as small gas bubbles in those parts of the metal where the helium atoms receive vacancies from nearby sources. From the distribution of the gas bubbles it is concluded that grain boundaries are effective sources of vacancies, but twin boundaries are not. Isolated sources of vacancies exist within the crystals, but there is no evidence that the dislocation network generates appreciable numbers of vacancies.Keywords
This publication has 3 references indexed in Scilit:
- Dimensional Changes Normal to the Direction of DiffusionJournal of Applied Physics, 1952
- Über die Diffusion in festen MetallenAngewandte Chemie, 1952
- Effects associated with the Flow of Vacancies in Intermetallic DiffusionProceedings of the Physical Society. Section B, 1952