The resistivity maximum during Guinier-Preston zone formation in Al-Zn alloys
- 1 October 1973
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 28 (4), 809-825
- https://doi.org/10.1080/14786437308220985
Abstract
In order to determine experimentally the relaxation time of the conduction electron due to G.P. zone scattering, changes of the Hall coefficient and the electrical resistivity during ageing at 20°C have been measured at 4–2 and 77°K, and in addition, X-ray small-angle scattering measurements were carried out at low temperature. By employing a rigid two-band model, the partial resistivity due to G.P. zone scattering was found to have a maximum during ageing. However, taking account of the log normal size distribution, the scattering power of an individual particle of G.P. zones was shown to increase monotonically with increasing zone size.Keywords
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