Fabrication and Properties of 1-3 Polymer Modified Cement Based Piezoelectric Composites

2011 ◽  
Vol 306-307 ◽  
pp. 305-308 ◽  
Author(s):  
Li Li Guo ◽  
Mi Mi Li ◽  
Min Sun ◽  
Dong Yu Xu ◽  
Shi Feng Huang
Keyword(s):  
Quality Factor ◽  
Acoustic Impedance ◽  
Piezoelectric Ceramic ◽  
Volume Fraction ◽  
Piezoelectric Composite ◽  
Electromechanical Properties ◽  
Piezoelectric Composites ◽  
Lithium Zirconate ◽  
Non Destructive ◽  
Thickness Mode

A piezoelectric ceramic(lead niobium lithium zirconate titanate, P(LN)ZT), sulphoaluminate cement and polymer were used to fabricate polymer modified cement based piezoelectric composites by cut-filling technique. The influence of P(LN)ZT volume fraction on the electromechanical properties and acoustic impedance of composite was investigated. Comparing with P(LN)ZT Piezoelectric ceramic, the vibration at thickness mode of 1-3 type piezoelectric composite is strengthened, and the electromechanical quality factor is reduced. When P(LN)ZT volume fraction is 30.86%, the acoustic impedance value is 8.24 M rayl, which is close to that of the concrete (9.0 M rayl), and this is suitable for the non destructive inspection.

Numerical Modeling of PZT- Piezoelectric Composites with Passive and Active Polymer Matrix

2019 ◽  
Vol 821 ◽  
pp. 445-451
Author(s):  
Oboso P. Benard ◽  
Nagih M. Shaalan ◽  
Nakamura Koichi ◽  
Atef E. Mahmoud ◽  
Mohsen A. Hassan
Keyword(s):  
Polymer Matrix ◽  
Volume Fraction ◽  
Homogenization Method ◽  
Piezoelectric Composite ◽  
Electromechanical Properties ◽  
Piezoelectric Composites ◽  
Voltage Coefficient ◽  
Constituent Material ◽  
Piezoelectric Polymer ◽  
Composite Properties

Piezoelectric composite materials with a polymer matrix are important for underwater acoustic and biomedical imaging applications. The dependence of electromechanical properties of piezoelectric composite on constituent material characteristics and shape of piezoelectric inclusions is a central problem that provides the opportunity to tailor the performance of piezoelectric composites according to design needs. A numerical model has been developed to investigate the electromechanical properties of 1-3 piezoelectric composites with a passive and active polymer matrix. Maxwell Homogenization method is employed to homogenize the solution domain. It is demonstrated that the use of PVDF as an active polymer matrix has a significant influence on piezoelectric charge coefficient d31, hydrostatic coefficient dh, voltage coefficient gh, and hydrophone figure of merit ghdh when compared to the passive Araldite-D polymer matrix. Overall, a 5 to 30% volume fraction of PZT-7A fiber inclusions in an active polymer matrix is the optimum ratio that has a significant effect on piezoelectric properties. The accuracy and effectiveness of homogenized material constants were verified by comparing the derived composite properties with experimental work published elsewhere. These results provide much needed intuitiveness in the development of piezoelectric polymer composite with better performance for transducer applications.

A Percolation Based Micromechnical Constitutive Model for Flexible Piezoelectric Paint

2008 ◽  
Author(s):  
Xin Li ◽  
Yunfeng Zhang
Keyword(s):  
Percolation Theory ◽  
Piezoelectric Ceramic ◽  
Volume Fraction ◽  
Particle Volume Fraction ◽  
Piezoelectric Composite ◽  
Sensing Element ◽  
Electromechanical Properties ◽  
Particle Volume ◽  
Micromechanics Model ◽  
Piezoelectric Activity

A percolation theory based micromechanics model is proposed in this paper to describe the elastoelectric properties of flexible piezoelectric paint. Piezoelectric paint consists of tiny piezoelectric ceramic particles randomly dispersed in a polymer matrix and therefore belongs to the “0–3” piezoelectric composite. Because of its ease of application, piezoelectric paint can be readily fabricated into sensing element with complex patterns. To guide the sensor design, a micromechanics model for describing the electromechanical properties of piezoelectric paint is proposed. The focus of this research is given to piezoelectric paint with a piezoelectric ceramic volume fraction ranging from 35% to 65%, for which some of the active particles form 1–3 connectivity, leading to higher piezoelectric activity than previous models for piezoelectric 0–3 composites predict. Percolation theory is used to model the quick increase of piezoelectric activity after a threshold level of piezoelectric ceramic particle volume fraction is exceeded in the piezoelectric paint. The effect of piezoelectric ceramic volume fraction on the electromechanical properties of piezoelectric paint is first examined. The proposed model for piezoelectric paint considers the effect of air void contents and poling field on the elastoelectric properties of piezoelectric paint. The parameters of the present model are calibrated with experimental data.

Dependence of Aspect Ratio on1-3 Polymer/Cement Based Piezoelectric Composite Properties

2009 ◽  
Vol 79-82 ◽  
pp. 2111-2114
Author(s):  
Li Li Guo ◽  
Ya Ping Peng ◽  
Shuang Shuang Liao ◽  
Shi Feng Huang
Keyword(s):  
Dielectric Properties ◽  
Aspect Ratio ◽  
Piezoelectric Ceramic ◽  
Piezoelectric Composite ◽  
Lithium Zirconate ◽  
Influence Of Temperature On ◽  
Piezoelectric Strain ◽  
Composite Properties ◽  
Thickness Mode ◽  
Properties Of Composites

Piezoelectric ceramic(lead niobium lithium zirconate titanate, P(LN)ZT), sulphoaluminate cement and polymer were used to fabricate 1-3 polymer/cement based piezoelectric composites by cut-filling technique. The influence of P(LN)ZT aspect ratio on the piezoelectric and dielectric properties of composites was investigated. The results show that as the P(LN)ZT aspect ratio increases, the piezoelectric strain factor d33 and relative dielectric factor εr decrease evidently, while the piezoelectric voltage factor g33 decreases slowly. The acoustic impedance Z is hardly influenced by the aspect ratio. At the same time, the influence of temperature on the dielectric properties of the composites was studied. The results show that with increasing the temperature at the frequency of 1kHz and 150 kHz, the dielectric factor εr exhibits the trend of increase. In the range of -40°C-110°C, the dielectric loss tanδ first increases slowly, but when exceeding the temperature of 80°C, it increases evidently. Comparing with P(LN)ZT piezoelectric ceramic, the vibration at thickness mode of 1-3 type piezoelectric composite is strengthened.

Effect of Poling Temperature on the Barium Ferrite Modified 0-3 Cement-Based Piezoelectric Composites

2012 ◽  
Vol 174-177 ◽  
pp. 1394-1397
Author(s):  
Shi Feng Huang ◽  
Mi Mi Li ◽  
Dong Yu Xu
Keyword(s):  
Dielectric Properties ◽  
Acoustic Impedance ◽  
Piezoelectric Ceramic ◽  
Barium Ferrite ◽  
Electromechanical Coupling ◽  
Piezoelectric Properties ◽  
Piezoelectric Composite ◽  
Piezoelectric Composites ◽  
Poling Temperature ◽  
C 50

A barium ferrite modified 0–3 cement-based piezoelectric composite was fabricated with piezoelectric ceramic [0.08Pb(Li1/4Nb3/4)O•0.47PbTiO3•0.45PbZrO3], sulphoaluminate cement and barium ferrite by compressing technique. It is well known that in the process of making piezoelectric composites，polarization is very critical, which is the process of domain structure's motion and development in a piezoelectric composites. Without the polarization, the composites will have no piezoelectric properties. So the influences of poling temperature on the piezoelectric and dielectric properties, electromechanical coupling property and acoustic impedance were investigated. And the poling temperature were selected at 30°C、50°C and 80°C. The results showed that the optimum poling temperature were 80°C.

Periodicity of Piezoelectric Ceramic Rods on Properties of 1-3 Type Cement Based Piezoelectric Composite

2010 ◽  
Vol 123-125 ◽  
pp. 161-164
Author(s):  
Dong Yu Xu ◽  
Shi Feng Huang ◽  
Chao Ju ◽  
Zong Zhen Zhang ◽  
Xin Cheng ◽  
...  
Keyword(s):  
Piezoelectric Ceramic ◽  
Electromechanical Coupling ◽  
Resonant Mode ◽  
Piezoelectric Composite ◽  
Electromechanical Coupling Coefficient ◽  
Frequency Spectra ◽  
Piezoelectric Composites ◽  
Periodic Composites ◽  
Periodic Composite ◽  
Periodic Arrangement

Periodic and non-periodic 1-3 type cement based piezoelectric composites were fabricated by cut and filling technique, using P(MN)ZT ceramic as functional material and cement as matrix. The influences of periodicity of piezoelectric ceramic rods in the composites on electrical properties of all the composites were discussed. The results show that the non-periodic composites have larger dielectric factor and piezoelectric strain constant than those of the periodic composite. The impedance-frequency spectra analysis indicates that the non-periodic arrangement of ceramic rods can effectively restrict the lateral structural mode of the composite, accordingly reduces the coupling resonant between the thickness resonant mode and lateral resonant mode. The thickness electromechanical coupling coefficient of non-periodic composites is larger than that of the periodic composite. With increasing the non-periodic level of P(MN)ZT ceramic in the composites, the mechanical quality factor of the composites increases gradually. Therefore, 1-3 type cement based piezoelectric composites with different special abilities can be obtained by varying the periodic arrangement of P(MN)ZT ceramic rods in the composites.

Influence of Base Thickness on Performance of 1-3-2 Piezoelectric Composite

2010 ◽  
Vol 123-125 ◽  
pp. 121-124 ◽  
Author(s):  
Xin Cheng ◽  
Shuang Shuang Liao ◽  
Shi Feng Huang ◽  
Li Li Guo
Keyword(s):  
Coupling Coefficient ◽  
Acoustic Impedance ◽  
Electromechanical Coupling ◽  
Mechanical Quality Factor ◽  
Piezoelectric Composite ◽  
Electromechanical Coupling Coefficient ◽  
Electromechanical Properties ◽  
Base Thickness ◽  
Mechanical Quality ◽  
Titanate Ceramic

Sulphoaluminate cement and Lead Niobium-Magnesium Zirconate Titanate ceramic [P(MN)]ZT were used as matrix and functional phase respectively to fabricate 1-3-2 cement-based piezoelectric composites by dice and filling technique. The influences of base thickness on piezoelectric properties, electromechanical properties and acoustic impedance properties of the composites were discussed. The results show that as the base thickness increases, the piezoelectric stain factor d33 increases gradually, while the piezoelectric voltage factor g33 decreases. The planar electromechanical coupling coefficient Kp exhibits the trend of decrease, while the thickness electromechanical coupling coefficient Kt and acoustic impedance show the increasing trend. The mechanical quality factor Qm reaches the minimum (1.49) when base thickness is 2.00 mm. The results reveal that the 1-3-2 piezoelectric composite will be suitable for application by changing the base thickness.

scholarly journals Investigation of Electromechanical Properties on 3-D Printed Piezoelectric Composite Scaffold Structures

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 5927
Author(s):  
Tutu Sebastian ◽  
Miriam Bach ◽  
Andreas Geiger ◽  
Tony Lusiola ◽  
Lucjan Kozielski ◽  
...  
Keyword(s):  
Fused Deposition Modeling ◽  
Composite Scaffold ◽  
Piezoelectric Composite ◽  
Electromechanical Properties ◽  
Destructive Testing ◽  
Fused Filament Fabrication ◽  
Pore Former ◽  
Piezoelectric Composites ◽  
Fused Deposition ◽  
Acoustic Transducer

Piezoelectric composites with 3-3 connectivity gathered attraction due to their potential application as an acoustic transducer in medical imaging, non-destructive testing, etc. In this contribution, piezoelectric composites were fabricated with a material extrusion-based additive manufacturing process (MEX), also well-known under the names fused deposition modeling (FDM), fused filament fabrication (FFF) or fused deposition ceramics (FDC). Thermoplastic filaments were used to achieve open and offset printed piezoelectric scaffold structures. Both scaffold structures were printed, debinded and sintered successfully using commercial PZT and BaTiO3 powder. For the first time, it could be demonstrated, that using the MEX processing method, closed pore ferroelectric structure can be achieved without pore-former additive. After ceramic processing, the PZT scaffold structures were impregnated with epoxy resin to convert them into composites with 3-3 connectivity. A series of composites with varying ceramic content were achieved by changing the infill parameter during the 3D printing process systematically, and their electromechanical properties were investigated using the electromechanical aix PES device. Also, the Figure of merit (FOM) of these composites was calculated to assess the potential of this material as a candidate for transducer applications. A maximum for the FOM at 25 vol.% of PZT could be observed in this study.

Modeling and Analysis of 1-3 Piezoelectric Composites

2002 ◽  
Author(s):  
Sanjay Nakhwa ◽  
Anil Saigal
Keyword(s):  
Boundary Conditions ◽  
Material Properties ◽  
Volume Fraction ◽  
Transversely Isotropic ◽  
Unit Cell ◽  
Coupling Constants ◽  
Upper And Lower Bounds ◽  
Piezoelectric Composite ◽  
Piezoelectric Composites ◽  
Material Constants

Theoretical results of the material properties of piezoelectric composites are generally limited to the transversely isotropic composites and are usually given in the form of upper and lower bounds. In most of these analyses all the material constants cannot be determined. However, the method of effective field has been used on a transversely isotropic piezoelectric composite to theoretically calculate all the ten material properties. In this work an alternative method to determine all the elastic, dielectric and piezoelectric coupling constants of 1-3 piezoelectric composite with periodic arrangement of fibers are investigated by using finite element analysis on a unit cell model. FEA of unit cell models for hexagonal, square with diagonal and square with edge orientation topologies are performed. Different mechanical and electrical loading patterns and their corresponding boundary conditions are formulated and simulated to get data necessary for deriving the various anisotropic material constants. FEA results are compared with those of the theoretical work. Effect of different parameters e.g. volume fraction, topology and electrical boundary conditions on the different material constants are discussed.

Performance Analysis of the 1-3 Piezoelectric Composites and Transducer Fabrication

2011 ◽  
Vol 687 ◽  
pp. 339-342 ◽  
Author(s):  
Min Sun ◽  
Dong Yu Xu ◽  
Shi Feng Huang
Keyword(s):  
Resonant Frequency ◽  
Volume Fraction ◽  
Relative Dielectric Constant ◽  
Piezoelectric Composite ◽  
Piezoelectric Composites ◽  
Figures Of Merit ◽  
The Matrix ◽  
Filling Method ◽  
Piezoelectric Strain ◽  
Piezoelectric Voltage

1-3 polymer-based piezoelectric composites were fabricated using epoxy as the matrix by the cut-filling method. The influences of PMN volume fraction on the piezoelectric and dielectric properties of the composite were analyzed, and then the piezoelectric composite was fabricated to transducer whose properties were also analyzed. The results indicate that with increasing the PMN volume fraction, both the hydrostatic piezoelectric voltage gh and hydrostatic figures of merit dh·gh of the composite decrease, while the relative dielectric constant εr increases. The hydrostatic piezoelectric strain dh has the optimum value in the PMN volume fraction range of 40%-60%. The resonant frequency of transducer in water is 306.5 kHz and anti-resonant frequency is 352.6 kHz.

A study on polarization properties of the carbon black modified 0-3 cement-based piezoelectric composites

2012 ◽  
Vol 174-177 ◽  
pp. 791-794
Author(s):  
Mi Mi Li ◽  
Shi Feng Huang ◽  
Shi Hui Xie ◽  
Mei Juan Zhou ◽  
Xin Cheng
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Carbon Black ◽  
Piezoelectric Ceramic ◽  
Piezoelectric Composite ◽  
Poling Field ◽  
Piezoelectric Composites ◽  
Poling Temperature ◽  
Piezoelectric Strain ◽  
Piezoelectric Voltage

A carbon black modified 0–3 cement-based piezoelectric composite was fabricated with piezoelectric ceramic [0.08Pb(Li1/4Nb3/4)O•0.47PbTiO3•0.45PbZrO3], sulphoaluminate cement and carbon black by compressing technique. The influences of poling conditions on the piezoelectric and dielectric properties of the composites were investigated. The results show that the higher poling electric field, the longer poling time and the higher poling temperature, the composites have the higher piezoelectric strain factor d33, piezoelectric voltage factor g33, dielectric constant εr and dielectric loss tanδ. At the same time, the carbon black modified composites are polarized more easily than the unmodified composites, and have better piezoelectric and dielectric properties. Meanwhile, the optimum poling conditions were obtained, and the optimum poling field E, poling time t and poling temperature T were 4 kV/mm, 20 min and 80 °C.

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