The temperature dependence of the elastic compliances of some alkali halides

摘要: The elastic moduli of LiF, NaF, NaCl and KCl single crystals have been measured in the temperature range 20-700°C by an audio frequency resonance method. were determined from resonances flexural torsional modes vibration long thin rods a knowledge room values which had obtained previously. compliances s11, -s12 s44 all increase with increasing temperature, typically factor two considered. Values extrapolated to 0°K are given, Debye temperatures calculated these.