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Internal Friction Peaks in Pure Aluminum Observed between 45 and 72°K after α‐Particle Irradiation
Author(s) -
Riggauer M.,
Schilling W.,
Völkl J.,
Wenzl H.
Publication year - 1969
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.19690330238
Subject(s) - annealing (glass) , irradiation , aluminium , materials science , kinetics , activation energy , internal friction , relaxation (psychology) , analytical chemistry (journal) , molecular physics , crystallography , chemistry , metallurgy , composite material , nuclear physics , physics , chromatography , psychology , social psychology , quantum mechanics
Relaxation peaks in aluminum found after α‐irradiation at 21.4°K are discussed. In the temperature region of 40 to 75°K, four peaks are observed which anneal out in stage II with first order kinetics. Two of them show the natural line‐width. From the annealing behaviour, the peaks are ascribed to the reorientation of interstitial clusters containing more than two interstitials. The activation energy for reorientation is significantly different from that for annealing.