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Electrical Resistivity Change of Silver and Gold Due to Large Plastic Strains
Author(s) -
Kovács I.,
Nagy E.
Publication year - 1963
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.19630030415
Subject(s) - electrical resistivity and conductivity , materials science , torsion (gastropod) , crystallite , liquid nitrogen , dislocation , copper , composite material , metallurgy , condensed matter physics , chemistry , electrical engineering , physics , medicine , surgery , organic chemistry , engineering
The change in the electrical resistivity of polycrystalline silver and gold wires of 99.99% purity is measured when these wires are subjected to various simultaneous torsion and extension derformations at liquid nitrogen temperature. It is found that the increase in resistivity depends only on the total strain, irrespective of the individual amounts of torsion and extension. The resistivity increase as a function of strain, is given by Δϱ = A ϵ 2 + B ϵ. The numerical values lead to estimates of the point defect, or dislocation concentration resulting from the deformation.