CN106699177A - Lead-free piezoelectric energy collecting material with high electricity generating characteristic, and preparation method thereof - Google Patents
Lead-free piezoelectric energy collecting material with high electricity generating characteristic, and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a lead-free piezoelectric energy collecting material with high electricity generating characteristic, and a preparation method thereof, and belongs to the field of electronic ceramic materials. The chemical composition of the ceramic material is (1-x)Ba(Zr0.185Cu0.015Ti0.8)O2.985-x(Ba0.7Ca0.3)TiO3, wherein the numerical value of x is 0.50 to 0.70. The lead-free piezoelectric energy collecting material with high electricity generating characteristic is prepared by taking BaCO3, CaCO3, BaZrO3, TiO2 and CuO as raw materials and through the steps of wet-grinding, drying, calcining, ball-milling for twice, pelletting, performing pressing formation and sintering. Preferably, through the synergistic effect of room-temperature three-phase coexistence and hard doping mechanism, the lead-free piezoelectric energy collecting material with high electricity generating characteristic greatly improves the energy connecting performance, is expected to be applied to a piezoelectric energy collecting device, can effectively recycle waste energy, is energy-saving, environmentally-friendly and safe, and has remarkable economic and social values.
Description
Technical field
The invention belongs to field of electronic ceramic materials, and in particular to a kind of to be applied to being generated electricity with height for vibration energy harvesting
The lead-free piezoceramic material of power.
Background technology
With the development of Internet of Things and wearable electronic technology, power supply mode based on chemical cell because volume is big,
Short life, can not meet the demand that mems device is supplied constant energy.In recent years, based on each of vibration energy harvesting
Energy collection technology is planted to receive significant attention and fast-developing.Wherein, piezoelectric energy conversion not only has energy density high, also
There is simple structure, easy without electromagnetic interference, processing and fabricating, be the vibration energy harvesting skill for most having application prospect at present
Art.
Piezoelectric energy collector is based on the direct piezoelectric effect of piezoelectric, i.e., when effectively acting on piezoelectric, in material
Surface produces electric charge.Mechanical oscillation ubiquitous in environment can be converted into by electric energy by the effect, realize that mechanical energy is returned
Receive the purpose for recycling.In order to obtain excellent power generation characteristics, it is for the most important performance requirement of piezoelectric energy collection material
With energy conversion efficiency η high：
Wherein, k is electromechanical coupling factor, Qm：It is mechanical quality factor.Additionally, collection of energy piezoelectric will also have
There is energy density u high:
Wherein, d is piezoelectric strain constant, and g is piezoelectric field constant, and F is active force, and A is area.For piezoelectric
Speech, energy density high is mainly determined by electromechanical conversion coefficient d × g values high.
Dimensionless figure of merit (DFOM) is an overall target for evaluating energy collecting material performance, and it can be public as follows
Formula is represented：
Wherein, tan δ are dielectric loss, sEIt is the elastic modelling quantity of material.
In sum, obtain and it is critical only that preparation while having height with power generation characteristics leadless piezoelectric energy harvester high
The lead-free piezoceramic material of energy conversion efficiency (η), electromechanical conversion coefficient (d × g) and dimensionless figure of merit (DFOM).Mesh
Before, widely studied leadless piezoelectric material material system mainly includes niobate, bismuth-sodium titanate base and barium titanate base piezoelectric ceramic.
Wherein, niobate system piezoelectric ceramics is located at polycrystalline phase boundary at room temperature, and piezoelectric property is excellent, but after temperature departure room temperature, its
Performance rapid degradation.And the reason for limit bismuth-sodium titanate base piezoelectric ceramic application, mainly its low depolarization temperature.In recent years
Come, barium titanate base piezoelectric ceramic turns into the new study hotspot in leadless piezoelectric material material field.Mainly changed by various in current research
Property means improve its piezoelectric constant d33, towards piezoelectric actuator application.There is pole with the performance requirement of piezoelectric energy collecting device
Big difference.It would therefore be highly desirable to develop the barium titanate base piezoelectric ceramic for meeting collection of energy performance requirement.In the present invention, by composition
The phase structure of driving develops, and combines Mn-modified mechanism, obtains at room temperature with tripartite-orthogonal-four directions (R-O-T) three
The rigid barium titanate base piezoelectric ceramic for mutually coexisting.The synergy of three-phase coexistence and Mn-modified mechanism, makes the barium phthalate base pressure
The collection of energy performance of electroceramics material is greatly improved, unleaded to realize piezoelectric energy collecting device, establishes solid
Basis.
The content of the invention
It is an object of the invention to provide a kind of lead-free piezoceramic material that can be applied to piezoelectric energy collector and its
Preparation method, the leadless piezoelectric ceramics of preparation is provided simultaneously with energy conversion efficiency (η) high, electromechanical conversion coefficient (d × g) and nothing
Dimension quality factor (DFOM).And its power generation characteristics is characterized by cantilever beam type energy harvester.In order to obtain energy high
Performance is collected, the phase structure driven by composition in the present invention is developed, makes composition at room temperature in R-O-T three-phase coexistences point,
And by divalence Cu2+Substitute part tetravalence Zr4+, produce Mn-modified effect.Cooperateed with by three-phase coexistence and Mn-modified and made
With realizing the significantly lifting of collection of energy performance.
To achieve the above object, the present invention takes following technical scheme.
Leadless piezoelectric material material with power generation characteristics high of the invention.It is characterized in that matrix chemical composition is：(1-x)Ba
(Zr0.185Cu0.015Ti0.8)O2.985-x(Ba0.7Ca0.3)TiO3, the numerical value of x is 0.50~0.70, further preferably wherein x numerical value
It is 0.55 material system.
The above-mentioned lead-free piezoceramic material with power generation characteristics high of the present invention is prepared by common liquid process, specific bag
Include following steps：
(1) according to chemical formula (1-x) Ba (Zr0.185Cu0.015Ti0.8)O2.985-x(Ba0.7Ca0.3)TiO3Middle each element is rubbed
You match, and weigh raw material BaCO3、CaCO3、BaZrO3、TiO2And CuO, wherein, the numerical value of x is 0.50~0.70；
(2) load weighted raw material is put into ball grinder, ball milling in ball mill is placed in by medium of absolute ethyl alcohol, then dried
It is dry, dried powder is calcined into 2 hours, furnace cooling at 1100~1200 DEG C；
Such as：Ball milling 12 hours in horizontal ball mill, then dry under the conditions of 100 DEG C；By dried powder 1100
Calcined 2 hours at~1200 DEG C, furnace cooling.
(3) by step (2) cool down after powder is by secondary ball milling and dries, the powder mull after drying is simultaneously made
Grain；It is preferred that using PVA granulations；
(4) after the powder that step (3) granulation is obtained is stood, compressing (such as in the forming under the pressure of 100MPa) obtains
To biscuit body, dumping treatment (preferably base substrate is processed in 560 DEG C of dumpings) is then carried out, is finally sintered at 1300~1400 DEG C,
Insulation 4 hours, cools to room temperature with the furnace, obtains target material.
The leadless piezoelectric material material for preparing, first passes around the polishing on surface, carries out micro-structural test, is then coated with
Silver electrode simultaneously carries out artificial polarization, and the test of piezoelectric property is carried out to sample.Finally, entered by cantilever beam structure energy harvester
Row power generation performance is tested.
Wherein, find that best sample composition is by preferred：0.45Ba(Zr0.185Cu0.015Ti0.8)O2.985-0.55
(Ba0.7Ca0.3)TiO3, due to being in R-O-T three-phase coexistences at room temperature, its material property can reach：Energy conversion efficiency η=
0.95th, electromechanical conversion coefficient d × g=4257 × 10-15m2/ N and dimensionless figure of merit DFOM=995；Power generation performance：Voltage U
=7V, power P=50 μ W, the very stable typical sinusoidal voltage and current signal of performance meet wireless sensor node and wearable
Demand of the electronic equipment for the energy.
Compared with prior art, the present invention has the advantages that：
(1) lead-free piezoceramic material for possessing high tension performance of the invention, with energy conversion efficiency (η) high,
Electromechanical conversion coefficient (d × g) and dimensionless figure of merit (DFOM), can effectively improve the power generation performance of collection of energy device, be
A kind of potential lead-free piezoceramic material for being applied to collection of energy device.
(2) unleaded piezoceramic material of the invention, its phase structure is in R-O-T three-phase coexistences area at room temperature, is high
The acquisition of piezoelectric activity leadless piezoelectric material material is provided and ensured.
(3) present invention introduces Cu2+Enter into Ba (Zr0.2Ti0.8)O3-(Ba0.7Ca0.3)TiO3(BCZT) in ceramics, due to
Hard doping effect, making the dielectric loss of lead-free ceramicses is reduced, and mechanical quality factor is significantly improved；Additionally, Cu2+Introducing significantly drop
The low sintering temperature of system, can at a temperature of less than 1400 DEG C densified sintering product.
(4) lead-free piezoceramic material Stability Analysis of Structures of the invention, preparation method be simple, low cost, easily operated.This hair
It is bright to be applied to piezoelectric energy collecting device, can the effectively discarded energy of recycling, and energy-saving and environmental protection, safety have
Significant economy and social value.
Brief description of the drawings
Fig. 1 is the X ray diffracting spectrum of different composition ceramics samples, and all samples show as pure perovskite structure.
Fig. 2 is into and is grouped into x=0.50, the leadless piezoelectric energy harvester hair of x=0.52, x=0.55 and x=0.60
Electrical property comparison diagram.
Specific embodiment
Below by embodiment the substantive distinguishing features and remarkable advantage that the present invention is furture elucidated, but the present invention never only office
It is limited to following examples.
Embodiment 1
According to chemical formula 0.50Ba (Zr0.185Cu0.015Ti0.8)O2.985-0.50(Ba0.7Ca0.3)TiO3Metering ratio, weigh
Raw material BaCO3, CaCO3, BaZrO3, TiO2And CuO, and ball milling 12 hours in ethanol.After mixture drying 1100~
Calcined 2 hours at 1200 DEG C；It is compressing under 100MPa after secondary ball milling and granulation, biscuit body is obtained, then base substrate is existed
560 DEG C carry out dumping treatment.It is final to be incubated 4 hours in 1300~1400 DEG C of sintering, obtain target material.
Embodiment 2
According to chemical formula 0.48Ba (Zr0.185Cu0.015Ti0.8)O2.985-0.52(Ba0.7Ca0.3)TiO3Metering ratio, weigh
Raw material BaCO3, CaCO3, BaZrO3, TiO2And CuO, the other the same as in Example 1.
Embodiment 3
According to chemical formula 0.45Ba (Zr0.185Cu0.015Ti0.8)O2.985-0.55(Ba0.7Ca0.3)TiO3Metering ratio, weigh
Raw material BaCO3, CaCO3, BaZrO3, TiO2And CuO, the other the same as in Example 1.
Embodiment 4
According to chemical formula 0.40Ba (Zr0.185Cu0.015Ti0.8)O2.985-0.60(Ba0.7Ca0.3)TiO3Metering ratio, weigh
Raw material BaCO3, CaCO3, BaZrO3, TiO2And CuO, the other the same as in Example 1.
Above-described embodiment performance comparison table of table 1
Claims (5)
1. a kind of lead-free piezoceramic material for being applied to collection of energy device, it is characterised in that chemical composition is：(1-x)Ba
(Zr0.185Cu0.015Ti0.8)O2.985-x(Ba0.7Ca0.3)TiO3, the numerical value of x is 0.50~0.70.
2. according to a kind of lead-free piezoceramic material for being applied to collection of energy device described in claim 1, it is characterised in that
Chemical composition is 0.45Ba (Zr0.185Cu0.015Ti0.8)O2.985-0.55(Ba0.7Ca0.3)TiO3, its phase structure is at room temperature three
Side-orthogonal-four directions coexists.
3. a kind of method of lead-free piezoceramic material, it is characterised in that comprise the following steps：
(1) according to chemical formula (1-x) Ba (Zr0.185Cu0.015Ti0.8)O2.985-x(Ba0.7Ca0.3)TiO3Middle each element mole is matched somebody with somebody
Than weighing raw material BaCO3、CaCO3、BaZrO3、TiO2And CuO, wherein, the numerical value of x is 0.50~0.70；
(2) load weighted raw material is put into ball grinder, ball milling in ball mill is placed in by medium of absolute ethyl alcohol, then dried,
Dried powder is calcined into 2 hours, furnace cooling at 1100~1200 DEG C；
(3) by step (2) cool down after powder is by secondary ball milling and dries, the powder mull after drying is simultaneously granulated；
(4) it is compressing after the powder that step (3) granulation is obtained is stood, biscuit body is obtained, dumping treatment is then carried out, most
Eventually in 1300~1400 DEG C of sintering, 4 hours are incubated, cool to room temperature with the furnace, obtain target material.
4. according to the method for claim 3, it is characterised in that using using PVA granulations, step (4) exists biscuit body to step (3)
560 DEG C of dumping treatment.
5. the application of the leadless piezoelectric material material described in claim 1 or 2, for piezoelectric energy collector, produces stable performance
Typical sinusoidal voltage, current signal.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698252A (en) * | 2017-10-13 | 2018-02-16 | 北京工业大学 | Application and preparation method of a kind of ceramic material as high-temperature stable piezoelectric energy collection material |
| CN111592351A (en) * | 2020-05-21 | 2020-08-28 | 中南大学 | Application of pyroelectric material |
| CN113582682A (en) * | 2021-08-30 | 2021-11-02 | 北京工业大学 | Lead-free piezoelectric ceramic material with high transduction coefficient and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863215A (en) * | 2012-09-21 | 2013-01-09 | 北京工业大学 | Piezoelectric ceramic material applicable to energy collecting devices and preparation method thereof |
| CN102910905A (en) * | 2012-10-24 | 2013-02-06 | 天津大学 | Low-temperature sintered zirconate-titanate barium calcium based leadless piezoelectric ceramic and preparation method thereof |
| CN104098329A (en) * | 2013-04-11 | 2014-10-15 | 华新科技股份有限公司 | Dielectric ceramic material composition and multilayer ceramic capacitor containing composition |
-
2016
- 2016-12-13 CN CN201611147524.9A patent/CN106699177B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863215A (en) * | 2012-09-21 | 2013-01-09 | 北京工业大学 | Piezoelectric ceramic material applicable to energy collecting devices and preparation method thereof |
| CN102910905A (en) * | 2012-10-24 | 2013-02-06 | 天津大学 | Low-temperature sintered zirconate-titanate barium calcium based leadless piezoelectric ceramic and preparation method thereof |
| CN104098329A (en) * | 2013-04-11 | 2014-10-15 | 华新科技股份有限公司 | Dielectric ceramic material composition and multilayer ceramic capacitor containing composition |
Non-Patent Citations (3)
| Title |
|---|
| YERANG CUI ET AL.: ""Lead-free (Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3-xwt %CuO ceramics with high piezoelectric coefficient by low-temperature sintering"", 《J MATER SCI: MATER ELECTRON》 * |
| 戴叶婧 等: ""CuO 掺杂(Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3无铅压电陶瓷的研究"", 《稀有金属材料与工程》 * |
| 普朝光等编著: "《非制冷红外探测材料技术》", 30 September 2011, 国防工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698252A (en) * | 2017-10-13 | 2018-02-16 | 北京工业大学 | Application and preparation method of a kind of ceramic material as high-temperature stable piezoelectric energy collection material |
| CN111592351A (en) * | 2020-05-21 | 2020-08-28 | 中南大学 | Application of pyroelectric material |
| CN113582682A (en) * | 2021-08-30 | 2021-11-02 | 北京工业大学 | Lead-free piezoelectric ceramic material with high transduction coefficient and preparation method thereof |
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