Premium
Ultrasonic Attenuation in Liquid Metals
Author(s) -
Vaid B. A.,
Sharma K. C.
Publication year - 1984
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.2221250209
Subject(s) - viscosity , thermodynamics , ultrasonic attenuation , attenuation , materials science , ultrasonic sensor , liquid phase , liquid state , atomic packing factor , relaxation (psychology) , phase (matter) , melting temperature , melting point , chemistry , crystallography , composite material , physics , optics , organic chemistry , psychology , social psychology , acoustics
Excess ultrasonic attenuation in general liquid metals, including those contracting on melting, is investigated in the framework of the two‐state model, the thermodynamic theory of relaxation processes, and the recent disorder model of melting proposed by the authors for both types of melts, i.e. those contracting on melting and the others shrinking on freezing. The generalization is affected through a parameter which is solely dependent on the structural consideration, viz. the packing fraction of solid and liquid phase. The agreement of calculated values of bulk viscosity with the experimental data is encouraging.