Premium
A study of amorphous PdCuSi by internal friction and DSC measurements
Author(s) -
Shui Jiapeng,
Chen Xiumei,
Wang Can
Publication year - 1996
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.2221960205
Subject(s) - torsion pendulum clock , internal friction , crystallization , materials science , torsion (gastropod) , amorphous solid , pendulum , composite material , thermodynamics , physics , chemistry , crystallography , anatomy , medicine , quantum mechanics
The internal friction of amorphous Pd 77.5 Cu 6.0Si 16.5 (a‐PdCuSi) was measured with a conventional torsion pendulum (Ke torsion pendulum) at increasing temperature, and it was found that there are two internal friction peaks (P 1 and P 2 ) near the glasstransition temperature T g and the crystallization temperature T x of a‐PdCuSi, respectively. From DSC measurements it was found that the origin of the peak P 2 is directly related to crystallization, while the peak P 1 may be a relaxing internal friction peak. The sensitivity of the inverted torsion pendulum and the Collette pendulum was discussed. We found that the controversy on the measured results of internal friction on a‐PdCuSi is due to the lower sensitivity of thesetwo pendulums.