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Influence of Neutron Irradiation at Low Temperature on Internal Friction and Bulk Modulus of Silver
Author(s) -
Chountas K.,
Dönitz W.,
Papathanassopoulos K.,
Vogl G.
Publication year - 1972
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.2220530123
Subject(s) - materials science , irradiation , internal friction , annealing (glass) , modulus , dislocation , electrical resistivity and conductivity , residual resistivity , composite material , neutron , young's modulus , neutron irradiation , condensed matter physics , nuclear physics , physics , quantum mechanics
The internal friction and the bulk modulus of silver were studied after irradiation at 25 K with fast neutrons. The Frenkel defects produced by irradiation cause dislocation pinning and a consequent decrease in the Bordoni internal friction peak. With increasing irradiation dose the bulk modulus first increases, reaches a maximum and then decreases below its original value. The behaviour of the modulus with annealing up to room temperature essentially corresponds to that of the residual electrical resistivity after low‐temperature neutron irradiation. A Frenkel defect concentration c FD gives rise to a relative dielastic modulus decrease Δ G / G which was determined to be Δ G /( Gc FD ) = −33 ± 9.