Abstract

Brillouin scattering studies have been carried out in molten AgNO3 at various temperatures (214-327 degrees C) and frequencies (3.5-11 GHz). Three types of data have been obtained: (i) hypersonic velocity data from the frequency shift of the Brillouin components; (ii) hypersonic absorption coefficients from the line-width of the Brillouin components; (iii) relaxation times of the bulk viscosity coefficient using a single relaxation theory. The experimental results of the acoustic attenuation are consistent with a relaxation curve calculated from the simplified form of the relaxation theory.

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