Table 2.
Piezoelectric coefficients, dij (pC∕N), eij (C∕m2), gij (10−3 Vm∕N), and hij (108 V∕m), and electromechanical coupling factors, kij, for PIN-PMN-PT crystals, compared to PMNT29.
| Material | d33 | d31 | d15 | e33 | e31 | e15 |
|---|---|---|---|---|---|---|
| Part A | 1130 | −544 | 119 | 19.1 | −6.1 | 7.6 |
| Part B | 1320 | −634 | 105 | 18.6 | −4.8 | 6.9 |
| Part C | 1510 | −712 | 119 | 17.1 | −5.4 | 7.6 |
| PMNT29 | 1540 | −699 | 164 | 22.3 | −3.9 | 10.3 |
| Material | g33 | g31 | g15 | h33 | h31 | h15 |
| Part A | 31.8 | −15.4 | 9.9 | 26.2 | −8.4 | 7.0 |
| Part B | 35.6 | −17.0 | 8.8 | 28.9 | −7.4 | 6.5 |
| Part C | 38.7 | −18.3 | 10.2 | 31.4 | −9.8 | 7.9 |
| PMNT29 | 32.2 | −14.6 | 11.9 | 27.7 | −4.8 | 8.7 |
| Material | k33 | k31 | k15 | kt | k31 (45 °C) | |
| Part A | 0.89 | 0.44 | 0.27 | 0.56 | 0.77 | |
| Part B | 0.91 | 0.47 | 0.25 | 0.57 | 0.80 | |
| Part C | 0.92 | 0.50 | 0.28 | 0.57 | 0.82 | |
| PMNT29 | 0.91 | 0.44 | 0.35 | 0.60 | 0.81 |