The measurement of the elastic constants of four alkali halides

摘要: Discrepancies of up to 10% exist in the published values elastic constants alkali halides and these are too large be accounted for by individual experimental errors. Static, resonance ultrasonic techniques have been applied determination LiF, NaF, NaCl KCl at room temperature. All specimens each material were taken from same parent single crystal which was grown Stockbarger method. Close agreement obtained with three methods, indicating that discrepancies do data may due differences crystals used various investigators.