材料类别 Type of Material |
P4 |
P5-1 |
P5-2 |
P5-3 |
P5-4 |
P8 |
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机电耦合系数 Coupling factors |
/ |
Kp |
0.55 |
0.60 |
0.66 |
0.63 |
0.70 |
0.60 |
K31 |
-0.33 |
-0.36 |
-0.38 |
-0.37 |
-0.42 |
-0.34 |
||
K33 |
0.45 |
0.62 |
0.74 |
0.71 |
0.79 |
0.66 |
||
Kt |
0.48 |
0.50 |
0.52 |
0.51 |
0.49 |
0.46 |
||
K15 |
0.65 |
0.68 |
0.71 |
0.68 |
0.83 |
0.73 |
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频率常数 Frequency constants |
m·Hz |
Np |
2055 |
1980 |
2050 |
2130 |
2080 |
2300 |
相对介电常数 Dielectric constants |
ε33T/εo |
1220±10% |
1820±20% |
3300±20% |
5300±20% |
6500±20% |
1530±10% |
|
压电应变常数 Piezoelectric charge constants |
×10-2 m/V (C/N) |
d31 |
-109 |
-200 |
-270 |
-350 |
-405 |
-135 |
d33 |
275 |
410 |
620 |
710 |
850 |
265 |
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d15 |
|
|
|
|
|
|
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电压输出系数 Piezoelectric voltage constants |
×10-3 V·m/N (m2/C) |
g31 |
-10.4 |
-11.5 |
8.9 |
6.6 |
6.0 |
-10.5 |
g33 |
25.6 |
26 |
29 |
15.1 |
13.5 |
26.5 |
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g15 |
|
|
|
|
|
|
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弹性柔顺系数Mechanical Compliances |
×10-12m2/N |
s11E=1/Y11E |
11.5 |
16.5 |
16.7 |
16.4 |
17 |
11.8 |
s33E=1/Y33E |
14.5 |
14.3 |
14.6 |
20.2 |
22.1 |
14.7 |
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泊松比Poisson’s ratio |
σ |
0.30 |
0.31 |
0.32 |
0.32 |
0.33 |
0.3 |
|
机械品质因数 Mechanical Q |
Qm |
1400 |
82 |
75 |
60 |
55 |
1200 |
|
介电损耗 Dissipation factor |
% |
tanδ |
0.3 |
2 |
2.3 |
3.0 |
3.5 |
0.2 |
居里点 Curie point |
℃ |
Tc |
320 |
340 |
250 |
175 |
150 |
300 |
密度 Density |
×103kg/m3 |
ρ |
7.6 |
7.8 |
7.8 |
7.9 |
7.9 |
7.8 |
温度系数 Temp.coefficient |
frTC ppm/℃ |
-20~+80℃ |
80 |
300 |
400 |
1000 |
1200 |
50 |
CTC Ppm/℃ |
-40~+80℃ |
/ |
300 |
1000 |
500 |
1500 |
68 |