Letter | Published:

Resistivity Changes due to Formation of G. P. Zones (Clusters rich in Solute)

Naturevolume 191pages6364 (1961) | Download Citation



AN anomalous increase in resistivity has been observed during formation of G. P. zones (clusters rich in solute) in several aluminium alloys1,2. Mott3 suggested that this effect may be due to a critical scattering of the conduction electrons when the zone grows to dimensions of the wave-length of the conduction electrons. Matyas4 showed on theoretical grounds that a maximum should occur for the resistivity change during zone formation.

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  1. 1

    Federighi, T., and Passari, L., Acta Met., 7, 422 (1959).

  2. 2

    Gayler, M. L. V., J. Inst. Metals, 60, 249 (1937).

  3. 3

    Mott, N. F., J. Inst. Metals, 60, 267 (1937).

  4. 4

    Matyas, Z., Phil. Mag., 40, 324 (1949).

  5. 5

    Panseri, C., and Federighi, T., Acta Met., 8, 217 (1960).

  6. 6

    Guinier, A., Ann. Phys. (Paris), 12, 90 (1939).

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  1. Department of Materials Science, The Technological Institute, Northwestern University, Evanston, Illinois

    • H. HERMAN
    •  & J. B. COHEN


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