Abstract

Phase velocities and energy losses for the magneto-thermo-elastic dilational plane waves propagating through an electrically conducting infinite medium are investigated. The properties of the elastic, thermal and magnetic modes are studied and relations are given expressing the variation in each of the phase velocity, amplitude attenuation and the specific loss with the impressed frequency. Amplitude ratios of the thermo-elastic and magneto-elastic waves are computed for each of the three modes. Their limiting values at high and low frequencies are also discussed. Finally, numerical details have been given for metals at room temperature, to show the order of the coupling between elastic, thermal and magnetic interactions.

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