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Thermal Properties of Piezoelectric Materials

These graphs illustrate the effect of temperature on piezoelectric properties of various material formulations.  Dielectric constants,  piezoelectric constants and coupling factors of the hard materials (Kxxxx) are more stable with respect to temperature than soft materials (Cxxxx).  However,  properties of soft materials generally exhibit a linear relationship to temperature over a broad temperature range.  Thus, it is possible to compensate for thermally induced property variations.

k31 vs. Temperature

d31 vs. Temperature

Frequency Constant (N1) vs. Temperature

Dielectric Constant vs. Temperature

Mechanical Q vs. Temperature

Static/Quasi-static Responses