TABLE VII: PROPERTIES OF PIEZOELECTRIC CERAMICS
(values are
averaged and a consistent set) |
| |
BARIUM TITANATE |
LEAD ZIRCONATE TITANATE |
Material
Reference Numbers
Channe Industries, Inc.
U.S. Navy |
300 |
600 |
1300
Navy
IV |
5400
Navy
I |
5500
Navy
II |
5600
Navy
V |
5700
Navy
VI |
5800 |
5804
Navy
III |
| Coupling Coefficients |
k33 |
.46 |
.39 |
.45 |
.71 |
.73 |
.73 |
.72 |
.67 |
.66 |
| k31 |
-.19 |
-.16 |
-.18 |
-.36 |
-.37 |
-.36 |
-.37 |
-.32 |
-.32 |
| k15 |
.46 |
.39 |
.45 |
.72 |
.71 |
.68 |
.65 |
.60 |
.59 |
| kp |
-.32 |
-.27 |
-.30 |
-.60 |
-.62 |
-.62 |
-.62 |
-.55 |
-.54 |
| Piezoelectric
Constants |
10-12 m/V |
145 |
82 |
145 |
300 |
400 |
505 |
550 |
245 |
240 |
| d33 |
| d31 |
" |
-58 |
-33 |
-56 |
-135 |
-185 |
-225 |
-250 |
-107 |
-105 |
| d15 |
" |
245 |
150 |
245 |
525 |
625 |
670 |
690 |
390 |
382 |
| g33 |
10-3
Vm/N |
13.1 |
16.8 |
12.2 |
26.1 |
25.8 |
22.0 |
19.4 |
25.2 |
25.8 |
| g31 |
" |
-5.2 |
-6.8 |
-4.7 |
-11.7 |
-11.9 |
-9.8 |
-8.8 |
-11.0 |
-11.3 |
| g15 |
" |
20.5 |
29.8 |
19.1 |
40.5 |
40.0 |
31.5 |
26.4 |
31.5 |
32..2 |
| Free
Dielectric Constants |
|
1250 |
625 |
1350 |
1300 |
1750 |
2600 |
3200 |
1100 |
1050 |
| KT3 |
| KT1 |
|
1350 |
570 |
1450 |
1475 |
1775 |
2400 |
2950 |
1400 |
1340 |
| Elastic
Constants |
1010 N/m2 |
11.7 |
11.6 |
11.9 |
8.2 |
6.4 |
6.2 |
6.2 |
8.6 |
8.6 |
1
/ sE11 = YE11 |
1
/ sE11 = YE11 |
" |
11.1 |
11.0 |
11.3 |
6.5 |
5.2 |
5.1 |
4.8 |
7.1 |
7.1 |
cE44 |
" |
4.2 |
4.2 |
4.3 |
2.5 |
2.0 |
2.2 |
2.3 |
2.9 |
2.9 |
Density
(min.) |
103
kg/m3 |
5.5 |
5.4 |
5.55 |
7.55 |
7.6 |
7.5 |
7.4 |
7.55 |
7.55 |
Mechanical
Q |
|
450 |
1200 |
600 |
500 |
75 |
70 |
65 |
1100 |
1050 |
Curie
Point, °C |
|
>115 |
>140 |
>115 |
>300 |
>350 |
>240 |
>190 |
>300 |
>300 |
| Dielectric
Loss Tangent (Max) |
|
.008 |
.003 |
.008 |
.004 |
.02 |
.02 |
.02 |
.004 |
.004 |
Low
Field |
| 2KV/cm
RMS |
|
NA |
.01 |
.015* |
.02 |
NA |
NA |
NA |
.007 |
.005 |
| 4KV/cm
RMS |
|
NA |
.025 |
.03* |
.04 |
NA |
NA |
NA |
.01 |
.01 |
| Change
in KT3 (%) (Max) |
|
NA |
3 |
6* |
5 |
NA |
NA |
NA |
2.5 |
2.0 |
|
4KV/cm RMS |
NA |
8 |
12* |
18 |
NA |
NA |
NA |
6.5 |
4.0 |
| Static
Tensile Strength psi |
7500 |
8500 |
7500 |
11000 |
11000 |
11000 |
11000 |
12000 |
12000 |
| Rated
Dynamic Tensile Strength psi |
3000 |
3500 |
3000 |
6000 |
4000 |
4000 |
4000 |
7000 |
7000 |
| Change
in N1 / Time Decade % |
0.5 |
0.4 |
0.4 |
1.5 |
0.2 |
0.25 |
0.25 |
1.0 |
1.0 |
| Change
in kp / Time Decade % |
-1.8 |
-0.7 |
-1.9 |
-2.3 |
-0.2 |
-0.35 |
-0.35 |
-2.0 |
-1.8 |
| Change
in KT3 / Time Decade % |
-0.8 |
-2.9 |
-1.3 |
-5.5 |
-1.0 |
-1.5 |
-1.5 |
-5.0 |
-4.0 |
