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Resistivity Increase in Polycrystalline Al Heavily Cold‐ Worked at 78 °K
Author(s) -
Ceresara S.,
Elkholy H.,
Federighi T.
Publication year - 1965
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19650080210
Subject(s) - crystallite , electrical resistivity and conductivity , materials science , shear (geology) , strain (injury) , condensed matter physics , composite material , metallurgy , physics , electrical engineering , anatomy , engineering , medicine
The increase in resistivity Δϱ of polycrystalline Al at 78 °K is investigated as a function of shear strain γ up to very large strains, by torsional measurements. A linear dependence of Δϱ on γ is observed only above γ = 180%. For γ between 0 and 70%, the results fit Saada's relation for the production of point defects.