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Harbin Core Tomorrow(CoreMorrow for short) provides piezoelectric components, which could be widely selected in terms of shape and size to suit your application.

CoreMorrow piezoelectric ceramics (also often called ultrasonic ceramics) contains only one piezoelectric ceramic layer inside, and there is no electrode layer inside, only the electrode layer on the outer surface, unlike the multilayer piezoelectric ceramics, there are many ceramic layers and electrode layers. It could be used for cutting without destroying the single-layer ceramic corresponding to the positive and negative electrodes.

Comparison of piezo component and multilayer piezo stack
Attributes	Piezo component	Multilayer piezo stack
Appearance
Driving voltage	High（~1kV/mm）	Low（60V/150V/200V）
Displacement	small, nanometer-scale	large, micrometer-scale
Resonant frequency	100kHz~6.6MHz	50Hz~100kHz
Capacitance	nF-scale	nF~μF-scale

Appearance and Size

Appearance

Size

Note: the size depends on the material, customized size is available.

Tube
OD: 5mm~140mm
TH: 1~60mm
ID: 1mm
WTH: 1mm

CoreMorrow Piezo Component Electrode

Standard electrode is silver. Standard electrode patterns is Solid, the cylinder inner and outer electrode, inner is positive and outer is negative. Customization patterns are as followings:

Piezo Component Withstand Voltage

Max Driving Voltage
Material	PZT4	PZT5	PZT8
AC	360~440V/mm	200~280V/mm	360~440V/mm
DC	720~880V/mm	400~560V/mm	720~880V/mm

Resonant Frequency

Plate resonant frequency
Thickness[mm]	Resonant frequency[kHz]
20	100
10	200
4	500
2	1000
1.4	1500
1	2000
0.5	4000
0.45	4700
0.3	6600

After the piezoelectric ceramics are installed in the equipment, the resonant frequency will be reduced, and the specific parameters need to be structured.

Displacement CALA.

Using the inverse piezoelectric effect, that is, applying a voltage to the piezoelectric ceramic, the piezoelectric ceramic will be deformed and displaced under the influence of the electric field.

1、Displacement cala.

Displacement of piezoelectric ceramic under the withstand voltage is about 1‰ of the length of displacement direction. For example, 1mm thick ceramic sheet has a withstand voltage of 1000V, and at 1000V, its displacement is about 1μm.

2、Plate piezo ceramic displacement cala.

U：voltage[V] ， H：height of piezo ceramic[m] ， E：electric field intensity[V/m] ， d：piezoelectric coefficients[m/V] ， W：width of piezo ceramic[m]

It can be seen from the above formula that the displacement of piezo ceramics is only related to the material and the driving voltage, and for the same material and different heights of piezo ceramic, as long as the same voltage is applied (Note: the voltage cannot exceed the voltage that it can withstand ), the resulting displacement is basically the same.
The displacement of other shapes can also be estimated according to this calculation formula.

Static Voltage CALA.

When the piezoe ceramic is used as a sensor, its positive piezoelectric effect is used, that is, it is deformed by applying an external force to output electric charge.

Disc static voltage cala.:

g33：material constant,

F：froce,

OD：outer diameter,

ID：inner diameter

Recommend Piezo Controller

Parameter
Model	Output voltage[V]	Output power[W]	Bandwidth(-3dB)
E01/00	120V	20W	0~50KHZ
	50V	20W	0~100KHZ
	40V	20W	0~150KHZ
E2031	300V	18W	0~500kHz
E4011	160V	80W	0~1MHz
E2021	170V	42.5W	0~1.5MHz
E1200	35V	17.5W	0~24MHz

Roughness: Rz 5-10, Ra 0,7-1,3.

Flatness: +/-10µm, depends the size.

Acoustic impedance: radialoscillation.

Output power: the output power is related to the frequency of ceramic vibration and driving voltage, etc., max to 40-50W/cm³on the resonant frequency point.

Material Technical Data:

Properties	Symbol & unit	NCE40	NCE41	NCE46*	NCE51 NCE51F	NCE53	NCE55	NCE56	NCE57*	NCE59*	NCE80	NCE81
Dielectric Properties（Tolerance +/-10%）
Relative Dielectric Constant	ε^T₃₃ / ε₀	1250	1350	1300	1900	1600	5000	2900	1800	2900	1050	1020
Dielectric Loss Factor	tgδ [10^-4]	25	40	30	150	130	220	140	170	190	20	17
Dielectric Loss Factor at 400V/mm	tgδ [10^-4]	140	200								100	60
Dielectric Loss Factor at 400V/mm	tgδ [10^-4]	140	200								100	60
Electromechanical Properties（tolerance +/-5%）
Electromech. Coupling Factors**	k_p	0.58	0.57	0.57	0.65	0.56	0.62	0.64	0.59	0.64	0.55	0.55
	k₃₁	0.34	0.33	0.33	0.38	0.32	0.39	0.37	0.33	0.37	0.30	0.30
	k₃₃	0.70	0.68	0.68	0.74	0.65	0.72	0.74	0.70	0.75	0.68	0.69
	k_t	0.50	0.50	0.47	0.50	0.47	0.50	0.50	0.47	0.52	0.48	0.47
Piezoelectric Charge Constants	-d₃₁ [10^-12 C/N]	140	130	130	195	150	260	250	170	240	100	100
	d₃₃ [10^-12 C/N]	320	310	290	443	360	670	580	425	575	240	255
Piezoelectric Voltage Constants	-g₃₁[10^-3 Vm/N]	11	11	11	13	9	9	9	11	10	11	11
	g₃₃ [10^-3Vm/N]	27	25	28	26	23	19	20	27	23	27	28
Frequency Constants	N^E_p [m/s]	2160	2280	2230	1925	2180	1970	2000	2010	1970	2270	2320
	N^D_t [m/s]	1980	2000	2040	2000	2040	1990	2030	1950	1960	2050	2130
	N^E₁ [m/s]	1470	1600	1500	1370			1530	1400	1410	1610	1630
	N^D₃ [m/s]	1340	1500	1800	1320			1400	1500	1500	1500	1500
Physical Properties（tolerance +/-5%)
Mechanical Quality Fator	Q_m	700	1400	>1000	80	80	70	80	80	90	1000	1400
Density	ρ [10³ kg/m³]	7.75	7.90	7.70	7.85	7.60	8.00	7.65	7.70	7.45	7.80	7.73
Elastic Compliances	s^E₁₁ [10^-12m²/N]	13	13	13	16	16	17	18	17	17	11	16
	s^E₃₃ [10^-12 m²/N]	17	16	20	19	18	21	20	23	23	14	17
Curie Tempreture	T_c[°C]	318	284	330	360	340	159	242	350	235	307	307
) For multilayer components only. *) Measured in accordance with standard EN 50324.
The values listed above are for reference purposes only and cannot be applied unconditionally to other shapes and dimensions. Values vary depending on the components' actual shape, surface finish, shaping process and post-processing.

Overview of the range of possibilities

OD (mm)

TH*(mm)

WTH**（mm）

2.5

√

100

√

110

√

120

√

140

√

Drawing

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