Metal Science and Heat Treatment

, Volume 21, Issue 9, pp 713–716 | Cite as

Characteristics of vacancies and temperature coefficients of electrical resistivity in aluminum and its alloys

  • Yu. S. Nechaev
  • A. S. Bubenshchikov
Nonferrous Metals and Alloys


  1. 1.

    The main source and sink of vacancies in large polycrystals of aluminum and alloys of Al+0.2–3.5% Cu and Al+0.02% Fe with small changes in temperature (ΔT=±6°) is the free surface. The time for relaxation of vacancies in samples 1 mm thick is 1–10 min at high temperatures.

  2. 2.

    In alloys of Al with 0.2–3.5% Cu the scattering capacity of monovacancies is an order higher than that of vacancies bound to copper atoms. The temperature dependence of the lattice electrical resistivity of aluminum and Al alloys matches the equation ρ = A + BT + CT2.



Copper Aluminum Free Surface Electrical Resistivity Temperature Coefficient 
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Literature cited

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Copyright information

© Plenum Publishing Corporation 1980

Authors and Affiliations

  • Yu. S. Nechaev
  • A. S. Bubenshchikov

There are no affiliations available

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