Variation in the elastic constants of lead, barium, and strontium nitrates in the range 4–300 K has been investigated with great accuracy using resonance and pulse-echo ultrasonic methods. The thermoelastic behavior of the three nitrates are compared. Strontium nitrate and lead nitrate especially appear to be much more anharmonic than barium nitrate.
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Michard et al. (1973) studied this question.
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