Notizen: Measurement of the Hypersonic Velocity in the Molten Salts NaCl and KCl

Abstract

The hypersonic velocity of molten sodium and potassium chlorides has been measured over a temperature range of about 100°C above the melting points. The measurements were carried out at scattering angles 90° and 140°, cor­responding to a 6-10 GHz frequency range. No deviation from previous ultrasonic values of velocity was observed at these frequencies, indicating that the measurements were performed at frequencies lower than any relaxation fre­quency.