Relevant bibliographies by topics / Piezoelectric ceramics

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  2. Dissertations / Theses
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Academic literature on the topic 'Piezoelectric ceramics'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 September 2023

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Journal articles on the topic "Piezoelectric ceramics"

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Chen, Qian, Zhi Jun Xu, Rui Qing Chu, Yong Liu, Ming Li Chen, Xiu Hui Wang, Chun Jiao Ran, and Guo Rong Li. "Study on Dielectric and Ferroelectric Properties of Gd-Doped Sr2Bi4Ti5O18 Ceramics." Advanced Materials Research 328-330 (September 2011): 1131–34. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.1131.

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Lead-free piezoelectric ceramics Sr2Bi4-xGdxTi5O18 were prepared by conventional solid-state reaction method. Pure bismuth layered structural ceramics with uniform gain size were obtained in all samples. The effect of Gd-doping on the dielectric, ferroelectric and piezoelectric properties of Sr2Bi4Ti5O18 ceramics were also investigated. It was found that that Gd3+ dopant gradually decreased the Curie temperature (Tc) with the lower dielectric loss (tand) of SBTi ceramics. In addition, Gd-doping with appropriate content improved the ferroelectric and piezoelectric properties of the SBTi ceramics. The piezoelectric constant (d33) of the Sr2Bi3.9Gd0.1Ti5O18 ceramic reached the maximum value, which is 22 pC/N. The results showed that the Sr2Bi4-xGdxTi5O18 ceramic was a promising lead-free piezoelectric material.
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Pang, Qianyi, Lanruo Han, and Xiang Yu. "Doping modification in lead-free piezoelectric ceramics." Highlights in Science, Engineering and Technology 55 (July 9, 2023): 166–75. http://dx.doi.org/10.54097/hset.v55i.9952.

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Piezoelectric ceramics are functional information ceramic materials that can convert mechanical and electrical energy into each other. They are widely used in high-tech fields, such as the electronics industry, machinery, and aerospace. Currently, Pb(ZrTi)O3 (PZT) piezoelectric materials are most commonly used, but the main component, PbO, is toxic and volatile during production and manufacturing, thus causing certain damage to human health and the environment. Therefore, research on green and environmentally friendly lead-free piezoelectric materials has been attracting much attention. This paper will therefore present two lead-free piezoelectric ceramics that have the potential to replace PZT-based lead-containing piezoelectric materials: Potassium Sodium Niobate (KNN)-based piezoelectric ceramics and Bismuth Sodium Titanate (BNT)-based lead-free piezoelectric ceramics. The piezoelectric constants of lead-free piezoelectric ceramics represented by systems such as KNN and BNT are now comparable to those of lead-containing piezoelectric ceramics and are gradually replacing traditional lead-based piezoelectric ceramics in fields such as ultrasonic atomization and hydroacoustic energy transfer.
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Li, Quan Lu, Jing Wu, Yin Hong Zhang, Ran Liao, Hai Xia Cheng, and Qing Qing Yang. "The Effects of Superfine Powder and Sintering Technique upon Properties and Applications of some Piezoelectric Ceramics." Advanced Materials Research 749 (August 2013): 3–12. http://dx.doi.org/10.4028/www.scientific.net/amr.749.3.

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This paper briefly reports on the improved properties and bettered applications of some piezoelectric ceramics (i. e. S-PZT, etc.) of ferro/piezoelectric community by means of bettering their technological process links, especial superfine grinding of powder of raw materials, and sintering technique of piezoelectric ceramics in them. These piezoelectric ceramic materials have obtained the better effect in their newly and widely applied aspects, such as, acoustoelectric transducing; electrical to mechanical to electrical transducing; acoustooptic effect; electrooptic technique, and, piezoelectric ceramics for high voltage generators, ignition and detonation purposes, and some original applications (e.g., combining the electrorheological fluids) etc.. As far as appropriate measure of the improving sintering and other technique processes in present work is concerned, they also have reference value to electronic ceramics of having similar manufacturing technological process, such as capacitor ceramics, resistance ceramics, magnetic ceramics, and oxide ceramic superconducting materials, etc..
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Feng, Yu Hua, Tie Zheng Pan, Xiang Qian Shen, Hao Jie Song, and Li Ping Guo. "Effects of Barium Substitution on the Structure and Properties of PSZT Piezoelectric Ceramics." Materials Science Forum 650 (May 2010): 103–8. http://dx.doi.org/10.4028/www.scientific.net/msf.650.103.

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Piezoelectric ceramics with appropriate curie temperatures and high dielectric and piezoelectric performances are attractive for formations of ceramic/polymer piezoelectric composites. The PSZT ceramics with compositions of 0.98Pb1.0-xBaxTi0.48Zr0.52O3-0.02PbSbO3 (x=0.14~0.24) have been prepared by a conventional solid reaction process. The ceramic structures are analyzed by X-ray diffraction and the barium substitution leads to structural changes of the tetragonal and rhombohedral phases which constitute the perovskite PSZT ceramics, and lattice distortions. The curie temperature almost linearly decreases from 226 °C to 141 °C corresponding the barium content increases from 0.14 to 0.24 in the ceramics. The dielectric and piezoelectric properties are largely influenced by the barium substitution and when the barium content at vicinity of 0.22, the piezoelectric strain constant d33 exhibits a dramatic change. It is found that as the barium content around 0.22, the PSZT ceramic specimen is characterized with a low curie temperature Tc=156 °C, and satisfied dielectric and piezoelectric properties with the relative dielectric constant εr=5873, dielectric loss factor tanδ=0.0387, piezoelectric strain constant d33=578 pC/N.
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Gao, Xiaoyi, Nannan Dong, Fangquan Xia, Qinghu Guo, Hua Hao, Hanxing Liu, and Shujun Zhang. "Impact of Phase Structure on Piezoelectric Properties of Textured Lead-Free Ceramics." Crystals 10, no. 5 (May 3, 2020): 367. http://dx.doi.org/10.3390/cryst10050367.

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The impact of phase structure on piezoelectric performances of <001> textured Na0.5Bi0.5TiO3 (NBT) based lead-free ceramics was studied, including 0.88NBT-0.08K0.5Bi0.5TiO3-0.04BaTiO3 (88NBT) with morphotropic phase boundary (MPB) composition and 0.90NBT-0.07K0.5Bi0.5TiO3-0.03BaTiO3 (90NBT) with rhombohedral phase. Both textured ceramics exhibit a high Lotgering factor, being on the order of f~96%. The piezoelectric coefficients of the textured 88NBT and 90NBT ceramics are increased by 20% and 60%, respectively, comparing to their randomly oriented ceramics. The piezoelectric enhancement of 90NBT textured ceramic is three times higher than 88NBT, revealing the phase structure plays a significant role in enhancing the piezoelectric performances of textured ceramics. Of particular significance is that the 90NBT textured ceramic exhibits almost hysteresis-free strain behavior. The enhanced piezoelectric property with minimal strain hysteresis is attributed to the <001> poled rhombohedral engineered domain configuration.
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Wu, Hong, and De Yi Zheng. "Preparation of PNN-PZT Ceramics and Piezoelectric Characteristics." Applied Mechanics and Materials 700 (December 2014): 132–35. http://dx.doi.org/10.4028/www.scientific.net/amm.700.132.

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The experimental basis formula selected in this experiment is 0.1Pb (Ni1/3Nb2/3)O3-0.9Pb (Zr0.42Ti0.58)O3(PNN-PZT). The traditional solid phase synthesis are applied piezoelectric ceramic samples. The relationship between the microstructure and electrical properties of the ceramic samples are analyzed by means of XRD, SEM, impedance analyzer etc. The XRD patterns show that all the ceramics exhibited a tetragonal perovskite structure. Through the analysis of the ceramic samples of piezoelectric and dielectric properties, PNN-PZT piezoelectric ceramics will possess best comprehensive properties when sintering temperature at 1190°C.
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Deng, Yunfeng, Junjun Wang, Chunxiao Zhang, Hui Ma, Chungeng Bai, Danqing Liu, Fengmin Wu, and Bin Yang. "Structural and Electric Properties of MnO2-Doped KNN-LT Lead-Free Piezoelectric Ceramics." Crystals 10, no. 8 (August 15, 2020): 705. http://dx.doi.org/10.3390/cryst10080705.

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Structural, ferroelectric, dielectric, and piezoelectric properties of K0.5Na0.5NbO3-LiTaO3-xmol%MnO2 lead-free piezoelectric ceramics with 0.0 ≤ x ≤ 0.3 were studied. The ceramic samples were synthesized through the conventional solid-state reaction method. The MnO2 addition can reduce the sintering temperature of KNLNT ceramics. Compared with undoped KNLNT ceramic, the piezoelectric measurements showed that piezoelectric properties of K0.5Na0.5NbO3-LiTaO3-xMnO2 were improved (d33 = 251 pC/N) when x = 0.1. In addition, KNLNT-xMnO2 ceramics have larger Pr(20.59~21.97 μC/cm2) and smaller Ec(10.77~6.95 kV/cm), which indicates MnO2 has excellent softening property, which improves the ferroelectric properties of KNLNT ceramics This work adds relevant information regarding of potassium sodium niobate K0.5Na0.5NbO3 (KNN) when doped Li, Ta, Mn at the B-site.
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Li, Yi Bo, Zhao Hui Liu, and Yan Mei Liu. "Model Identification and Controller Design for Piezoelectric Ceramic Actuator." Applied Mechanics and Materials 734 (February 2015): 264–67. http://dx.doi.org/10.4028/www.scientific.net/amm.734.264.

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Piezoelectric ceramics are widely used in precision measurement and precision positioning, but its nonlinear characteristics seriously affected its application. Thus, firstly input voltage and output displacement data of piezoelectric ceramics are collected by the experiment, the nonlinear characteristics of piezoelectric ceramics is analyzed. Then a piezoelectric ceramic linear model is established using recursive least squares algorithm based on input and output signal. The identification results show that the algorithm is effective. Finally PID controller is designed and the controller has better control effect.
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Zhang, Chang Song, and Chen Jie Guo. "Analysis of PZT Piezoelectric Ceramics Based on Finite Element Softeware ADINA." Advanced Materials Research 284-286 (July 2011): 1456–59. http://dx.doi.org/10.4028/www.scientific.net/amr.284-286.1456.

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Using traditional experiment means on piezoelectric ceramic device has certain limitations due to the complicated boundary conditions and stress situation. In this paper, the finite element model of piezoelectric ceramics in line with the experiment results was established according to piezoelectric structure field and the coupling of the electric field, deformation of representative PZT piezoelectric ceramics under the voltage was analysed in using finite element analysis software ADINA according to establishing geometric model, defining boundary conditions and materials, Coupling calculation. Consistency between simulation results and experimental results is improved and lay the foundation for the realization of the piezoelectric ceramic shapes and vibration control.
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Peng, Ling, Min Hong Jiang, Zheng Fei Gu, and Gang Cheng. "Effect of Sintering Temperature on the Structure and Piezoelectric Properties of Lead-Free 0.97K0.5Na0.5NbO3-0.03AlFeO3 Ceramics." Key Engineering Materials 602-603 (March 2014): 822–25. http://dx.doi.org/10.4028/www.scientific.net/kem.602-603.822.

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Lead-free piezoelectric 0.97 K0.5Na0.5NbO3-0.03 AlFeO3(KNN-AF) ceramics were prepared at low temperature of 980 °C to 1020 °C by the conventional ceramic process. The effect of sintering temperature on the crystal structure, density and electrical properties of the ceramics was investigated. The results indicate that KNN-AF ceramics sintered at an low temperature of 1000 °C exhibit high electrical and piezoelectric properties, with piezoelectric constantd33=116ρC/N, and electromechanical coupling factorkp= 32.9%, polarization (Pr) wasPr=21.8 μC/cm2and curie temperatureTC=382°C. This also indicates that KNN-AF ceramics are promising candidate materials for lead-free piezoelectric applications.
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Dissertations / Theses on the topic "Piezoelectric ceramics"

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Zhu, Zangyuan. "Lead-free piezoelectric ceramics." Thesis, University of Leeds, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.581971.

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Legislation arising from health and environmental concerns has intensified research into finding suitable alternatives to lead-based electroceramics. Lead zirconate titanate (PZT) has been developed over several decades to become the market-leading piezoelectric ceramic. Lead-free solid solutions based on sodium potassium niobate, Na0.5K0.5NbO3 (NKN), show promising dielectric and piezoelectric properties. 1-2 The related (l-x)( Na0.5K0.5NbO3)-xBiScO3 binary system (NKN-BS) has been reported to exhibit maximum d33 values of 200 pCIN at 2 mol% BS.3 Similarly, an optimal d33 value has been reported for the binary NKN-LT system at 5-6 mol% LiTa03.4 In this work, a series of compositions along the compositional join in the ternary NKN-LT-BS system, extending from 0. Na0.5K0.5NbO3 -0.02BiScO3 toward LiTa03 have been prepared and characterized. A 0.98[0.98NKN - 0.02(LiTaO3)] - 0.02[BiScO3] (NKN- 2L T -2BS) composition showed enhanced piezoelectric properties, relative to similar compositions, with d33 values of 215 pCIN. This can be attributed to a phase content of mixed orthorhombic (or monoclinic) and tetragonal phases at ambient temperatures. Variable temperature X-ray diffraction (XRD), and dielectric measurements as a function of temperature, indicated phase transitions (on heating) from an orthorhombic (or monoclinic) crystal system to tetragonal and then cubic crystal systems at ~25°C and ~370°C respectively. Different types of dielectric behaviour were observed on increasing the LT content. A NKN-5%LT-2%BS composition exhibited twin dielectric peaks at high temperatures (~370°C and ~470°C), along with broad X-ray diffraction peaks and a fine grain size, < 0.5 μm. The twin dielectric peaks suggest that chemical inhomogeneities may have been present; this was examined using transmission electron microscopy (TEM) with energy dispersive X-ray analysis (EDX). Elemental segregation was observed within individual grains, such that a core-shell grain structure was evident. The twin high temperature dielectric peaks are attributed to the separate response from the core and shell regions, each of which have a characteristic Curie temperature range. Subsequently, a series of other compositions were prepared in the wider Na0.5K0.5NbO3 - LiTaO3-BiScO3 ternary system. Considering the combined data from XRD, dielectric measurements, SEM, TEM and piezoelectric properties for a wide range of compositions within the NKN-rich region of the NKN-LT-BS system, materials may be grouped into three categories, exhibiting the following defining characteristics. Type I: single, sharp dielectric Curie peak (~ 370°C); single phase by XRD; large grain size (5-10μm); chemically uniform by TEM-EDX. Type II: broad, single dielectric peak (~ 350°C); single phase by XRD; large grain size; no obvious chemical segregation. Type Ila: twin, broad dielectric peak(s) (~ 370°C and ~ 470°C); broad XRD peaks; small grain size (~ O.5μm); chemical segregation (core-shell structure) identified by TEM-EDX. Reasons for the properties of these three classes of material are discussed; comparisons are drawn with other lead-free dielectrics and piezoelectrics; finally, the potential of the materials in future device applications are considered.
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Sanson, Alessandra. "Modified bismuth titanate piezoelectric ceramics." Thesis, Cranfield University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401625.

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Olsen, Gerhard Henning. "Texturing of lead-free piezoelectric ceramics." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19102.

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A procedure for texturing of lead-free piezoelectric ceramics based on sodium potassium niobate (KNN) was investigated with respect to texturing procedure and choice of materials.Material compositions that were considered include KNN with and without addition of 0.5 mol% MnO, and KNN modified with Li and Ta (KNNLT), and Mn substituted into the A or B site of the perovskite structure. The two compositions KNN-Mn and KNNLT-Mn(A) compositions were further investigated as candidate materials for texturing.Textured samples of the two materials were made by tape casting and templated grain growth, using needle-shaped KNN particles as templates, while non-textured reference samples were made by conventional sintering of powders. Both textured and non-textured dense materials were characterized with respect to density, degree of texture and piezoelectric and dielectric properties. The non-textured materials sintered to high relative densities of 93.9 % for KNN-Mn and 96.7 % for KNNLT-Mn(A). A converse piezoelectric coefficient of over 250 pm/V was measured for non-textured KNNLT-Mn(A), and around 200 pm/V for KNN-Mn.Texturing led to a lower relative density of both compositions, 89.1 % for KNN-Mn and 92.1 % for KNNLT-Mn(A). The piezoelectric performance of KNN-Mn was not significantly affected by the texturing procedure, while the piezoelectric performance of KNNLT-Mn(A) became significantly poorer. This is due to the formation of a secondary phase in KNNLT-Mn(A) during sintering, which is probably caused by the compositional mismatch between the templates and the fine-grained matrix powder.Based on the results, and a theoretical consideration of the texturing procedure, a different choice of template particles is suggested for further work on texturing of KNN-based materials.
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Hussain, Fayaz. "Lead-free KNN-based piezoelectric ceramics." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/17132/.

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In many commercial devices, there are a number of ways in which energy is wasted or dissipated. This waste energy can, in principle, be harvested by using the correct functional material. In the case of vibrational energy, the logical materials of choice are piezoelectric ceramics. However, all current commercial piezoelectrics contain lead oxide which is classed as a restricted material in environmental legislation. The main contenders for lead free piezoelectrics are based on K0.5Na0.5NbO3 (KNN) and Na0.5Bi0.5TiO3. The former however, has the advantage in that it is compatible with cheap Ni-based internal electrodes and thus it is feasible to manufacture low cost KNN based multilayer devices provided formulations do not deteriorate in the reducing condition required to suppress the formation of NiO. Consequently, KNN based lead free piezoelectric ceramics have been studied from the perspective of optimising their performance for multilayer actuators, potentially for energy harvesting applications. To this end, the defect chemistry of KNN has been investigated under different sintering conditions, dopants (acceptors: Mn2+, Ti4+, Sn4+ in KNN_50/50 ratio; Donor: Sr2+ in KNN_50/50 ratio; Ta5+ as an isovalent in KNN-51/49 ratio; and co-dopants: Bi3+ and Zr4+ in KNN_50/50 ratio) have been incorporated into KNN to enhance the piezoelectric performance and prototype multilayers of 10 and 16 layers with inner Pt electrodes have been fabricated to demonstrate the potential of 0.942KNN-0.058BNZ+ZrO2 for the fabrication of multilayer actuators. This lead free composition has the potential to replace PZT-4 and PZT-8 in piezoelectric devices for room temperature applications. To fabricate the multilayers, a novel Wet-Multilayer-Method (WMM) was also developed to overcome the issues of delamination during firing of MLCCs.
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Wegrzyn, Margaret. "Sodium potassium niobate based piezoelectric ceramics." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/sodium-potassium-niobate-based-piezoelectric-ceramics(8f2d3804-5012-4562-8bb0-2b325b754d13).html.

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NKN doped samples, (100-x)NKN-xSBN (0 ≤ x ≤ 10) were produced using the conventional mixed oxide route with 0.45 wt% Fe2O3 sintering aid (xSBNF). After 20-24 hours mixing, samples were calcined at 850°C and sintered at 1100–1140°C (± 180°C/hour) for 4 hours. By XRD 4 mol% SBN was found to be the solubility limit for single phase structure. By SEM, second phases were visible when 2 ≤ x ≤ 4; their structure was subsequently shown to be tungsten bronze type (TBT). 2-4 SBNF samples were high density, over 96% theoretical. For x = 0, TC = 457°C, TO-T = 234°C, Pr = 22 μC/cm2 and EC = 16.5 kV/cm. TC was found to decrease by 14.7°C and TO-T by 9.0°C per 1 mol% addition SBN. 2SBNF was the optimal formulation in terms of microstructure and electrical properties, with average grain size 3 μm, Pr = 25 μC/cm2 and EC = 8.8 kV/cm, ρ = 4.7 kΩm and Q = 1.16 eV. This material comprised approximately 90% orthorhombic and 10% tetragonal phases coexisting. Pseudo-cubic lattice parameters are a’ = c’ = 3.947180 Å, and b’ = 3.999996 Å for orthorhombic phase; the tetragonal has a’ = c’ = 3.989798 Å, and b’ = 3.975777 Å.Synchrotron XRD studies were undertaken as a function of temperature on 99.5NKN-0.5CuO + 0.6 wt% Nb2O5 solid and powder samples. The data were Rietveld refined. The solid sample underwent two polymorphic phase transitions at 300°C and 515°C; the latter was between two tetragonal phases: lattice parameters for the tetragonal phase (300-520°C) were a’ = c’ = 4.99557 Å, and b’ = 4.0363 Å; high temperature tetragonal (>500°C) exhibited a’ = c’ = 4.9519 Å, and b’ = 4.4941 Å. The powder sample of the same formulation exhibited more, smaller transformations. It was only orthorhombic at temperatures <140°C with a’ = c’ = 4.10680 Å, and b’ = 4.02620 Å. Above 140°C both orthorhombic and tetragonal phases were present. Another significant transformation occurred at 360°C where the structural unit cell parameters changed significantly. Parameter lengths are provided. P-E data was characterised by Pr = 19.9 μC/cm2 and EC = 13.5 kV/cm. Synchrotron X-ray diffraction analysis of 94 NKN-6LiTaO3 showed that tetragonal phase was present at 20-390°C, although an orthorhombic phase was identified at 20-200°C and again at 340-390°C just before the cubic transition temperature at 390°C. This is a new observation for NKN. A new and simple method for tape casting was developed to reduce powder wastage, enabling thick films of 50 μm to be cast. The reactive templated grain growth (RTGG) method was employed to orient 95NKN-5LiNbO3 and 94NKN-6LiNbO3 samples; CuO was utilised as a sintering aid. Pre-cursor BNN and NN template particles were produced using the molten salt synthesis (MSS) method, using a salt to oxide ratio of 1:1. Resulting NN particles were 15 μm wide and 0.5 μm thick. Eight layered 6LN + 0.4 wt% tapes produced using 10 wt% template particles resulted in 210 μm thick tapes with 67% orientation when sintered at 1150°C. Resulting properties include TC = 440ºC and TO-T = 70ºC, 25 kΩ resistance and capacitance 21.6 pF.
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Zeb, Aurang. "Lead-free dielectric and piezoelectric ceramics." Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/11968/.

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A goal in the search for lead-free piezoelectrics is to discover solid solutions with temperature insensitive morphotropic phase boundaries, as this is likely to enhance piezoelectric properties and promote temperature-stability. Furthermore, there is a high drive for developments of temperature stable dielectric ceramics which can operate at temperatures > 200 ºC, well above the limit of existing high volumetric efficiency capacitor materials. A new family of novel lead-free piezoelectric perovskite solid solutions in the binary systems (1-x)K0.5Bi0.5TiO3-xBi(Mg0.5Ti0.5)O3, (1-x)KBT-xBMT and (1-x)K0.5Bi0.5TiO3-xBa(Zr0.2Ti0.8)O3, (1-x)KBT-xBZT were fabricated. In the examination of (1-x)KBT-xBMT ceramic system, a phase boundary (MPB) between tetragonal and mixed phase tetragonal+cubic (pseudocubic) was identified at 0.025 < x < 0.03. Compositions 0.03 ≤ x < 0.08 were mixed, tetragonal and cubic phase. Compositions close to MPB exhibited favourable piezoelectric properties, for example, the piezoelectric charge coefficient, d33, was 150 pC/N for composition x = 0.03, and 133 pC/N for x = 0.04. A high bipolar electric field-strain was exhibited by MPB compositions with strains of 0.25%-0.35%. Values of temperature dependent unipolar strain for the (1-x)KBT-xBMT (x = 0.03 and 0.04) were retained ~ 0.18% at a temperature ≥ 185 ºC. Thermally stimulated charge decay and kp-T measurements revealed full depolarisation at Td ~ 220 ºC. The overall properties are very promising for electromechanical actuator applications. In the binary (1-x)KBT-xBZT system, the mixed phase (tetragonal+cubic) composition x = 0.1, demonstrated a piezoelectric charge coefficient, d33 = 130 pC/N, bipolar strain ~ 0.13% (60 kV/cm) and high depolarisation-temperature ~ 220 ºC. Temperature stable dielectric systems; (1-x)Ba0.8Ca0.2TiO3-xBi(Mg0.5Ti0.5)O3, (1-x)BCT-xBMT), 0.45Ba0.8Ca0.2TiO3-(0.55-x)Bi(Mg0.5Ti0.5)O3-xNaNbO3, 0.45BCT-(0.55-x)BMT-xNN, and (1-x)[0.5K0.5Bi0.5TiO3-0.5Ba(Zr0.2Ti0.8)O3]-xBi(Zn2/3Nb1/3)O3, (1-x)[0.5KBT-0.5BZT]-xBZN were synthesised with near plateau in relative permittivity-temperature response (εr-T), giving a ±15%, or better, consistency in εr across a wide temperature range, coupled with optimum dc resistivities. The composition: 0.5BCT-0.5BMT indicated a temperature stability, ɛr = 800±15% from 40-550 ºC, with tanδ ≤ 0.02 over the temperature range 100-400 ºC. For a slightly higher BMT content, the dielectric properties were superior to 0.5BMT, with ɛr = 950±15% from 70 to 600 ºC and tanδ ≤ 0.02 from 160-550 ºC. Achieving temperature-stability down to -55 ºC and below was accomplished in the 0.45BCT-0.55BMT ceramic materials by the incorporation of NaNbO3 at a level x ≥ 0.2. Modification with x = 0.3, led to the temperature stability in relative permittivity, with ɛr = 550±15% across the temperature range -70 ºC-300 ºC and tanδ ≤ 0.02 from -60 ºC to 300 ºC, thus achieving the goal of producing a temperature-stable relaxor dielectric to operate in a range of harsh environments down to < -55 ºC. Similarly, a near flat dielectric response was exhibited by the ceramic system (1-x)[0.5KBT-0.5BZT]-xBZN ceramic system (x = 0.2BZN) with εr = 805±15% across a wide temperature range, from -20 ºC to 600 ºC; with tanδ ≤ 0.02 across from 50 ºC to 450 ºC. These temperature stable dielectric materials were comparable to the best temperature stable dielectric materials for example; 50BaTiO3-25Bi(Zn0.5Ti0.5)O3-25BiScO3, εr = 1100±15% (80-500 ºC), 0.85[0.6Na0.5Bi0.5TiO3-0.4K0.5Bi0.5TiO3]-0.15K0.5Na0.5NbO3, εr = 2167±10% (54-400 ºC) and highly attractive for the high temperature capacitor applications.
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Barthe, Peter Girard. "Analysis of tapered-thickness piezoelectric ceramics for ultrasonic transducers." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/15434.

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Kalem, Volkan. "Development Of Piezoelectric Ceramics For Ultrasonic Motor Applications." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612935/index.pdf.

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This study has been carried out to develop and manufacture piezoelectric ceramic materials which are utilized for ultrasonic motor (USM) applications. For this purpose, the effect of compositional modifications on the dielectric and piezoelectric properties of lead zirconate titanate (PZT) based ceramics was investigated. PZT based powders were produced using the mixed oxide method. The base composition was selected as Pb(Zr0.54Ti0.46)O3. The samples in the proximity of morphotrophic phase boundary were doped with strontium, lanthanum, lead manganese niobate (PMnN) and lead manganese antimonate (PMS) in order to improve the structural characteristics and electromechanical properties which are very important for USM applications. The dielectric constant, planar coupling coefficient, mechanical quality factor, piezoelectric strain constant and tangent loss values were evaluated in accordance with standard IRE (Institute of Radio Engineers) test procedures. The results on dielectric and piezoelectric properties showed that piezoelectric ceramics with high mechanical quality factor, high piezoelectric strain constant and low tangent loss could be produced by using the aforementioned dopants. As a result, a new piezoelectric ceramic named as 0.97[PSLZT]-0.024[PMnN]-0.006[PMS] was produced with KT= 1913, Qm= 1240, d33= 540 pC/N, tan delta= 0.89%, kp= 0.57 and Tc= 235 °
C. This composition is a good candidate for high power applications. The ceramic samples with the developed compositions were used to produce an ultrasonic-wave type motor and the performance of the USM was evaluated in terms of speed, torque and efficiency.
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9

Datta, Kaustuv. "Structural studies of novel bismuth containing piezoelectric ceramics." Thesis, University of Warwick, 2010. http://wrap.warwick.ac.uk/3902/.

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Perovskite-based materials are in the focus of research not only because of their excellent physical properties, but also because their relatively simple structure facilitates the understanding of structure-property relationships, which is crucial for developing novel materials with improved qualities. Recent research in the field of ferroelectric and piezoelectric materials is concerned with the development of eco-friendly lead-free materials. To achieve this goal, it is important to understand the fundamental correlation between the ‘Structure’ and the ‘Property’. In this work, the primary focus has been to elucidate the structural changes occurring as a function of doping in three different systems: (1) BiScO3-PbTiO3 (BS-PT), a recently developed system which has already attracted much interest because of its superior physical properties near the morphotropic phase boundary (MPB); (2) BiScO3-BaTiO3 (BS-BT), which can be considered as a lead-free analogue of the BS-PT family and lastly, (3) Na0.5Bi0.5TiO3-BaTiO3 (NBT-BT), which is a well-known lead-free material at the NBT-rich side of the phase diagram. Powder samples with a range of compositions for each system were prepared following the solid-state synthesis route and were investigated utilizing both neutron and x-ray powder diffraction and dielectric measurements. Detailed crystallographic information was obtained by Rietveld refinement against the neutron powder diffraction data. Structural phase transitions as a function of temperature were determined by nonambient x-ray powder diffraction and compared with the physical properties of the ceramics using high-temperature dielectric measurements. The significant outcomes are: 1. The best model to represent the so-called MPB of xBS-(1-x)PT system is found to be a mixture of a tetragonal and a monoclinic phases from the powder diffraction data. The structure beyond the MPB compositions is in better agreement for a single monoclinic model with the space group Cm than the accepted space group R3m. By contrast, single crystals with compositions around the MPB provide evidence for a model consisting of two primitive monoclinic cells. 2. The lead-free BS-BT system exhibits an extended phase boundary between tetragonal and pseudocubic phases, which can be modelled by a combination of tetragonal and rhombohedral phases. The incorporation of BS into BT also results in the suppression of the two low-temperature phase transitions of BT. 3. Samples with new compositions synthesized in the xNBT-(1-x)BT system demonstrate a rare enhancement in the tetragonality of the unit cell and an increase in the Curie temperature for compositions where x <= 0.40.
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Skidmore, Thomas Andrew. "Fabrication and Characterisation of Lead-Free Piezoelectric Ceramics." Thesis, University of Leeds, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.521534.

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Books on the topic "Piezoelectric ceramics"

1

Gómez, Ernesto Suaste. Piezoelectric ceramics. Rijeka, Croatia: Sciyo, 2010.

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Jordan, T. L. Piezoelectric ceramics characterization. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 2001.

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Hooker, Matthew W. Properties of PZT-based piezoelectric ceramics between -150 and 250p0sC. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1998.

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Abraham, Thomas. Piezoelectric ceramics, ceramic/polymer composites and polymers--: New developments and markets. Norwalk, CT: Business Communications Co., 1993.

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Ballas, R. G. Piezoelectric multilayer beam bending actuators: Static and dynamic behavior and aspects of sensor integration. Berlin: Springer, 2007.

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Adamczyk-Habrajska, Małgorzata. Synteza i badania właściwości ceramiki BaBi₂Nb₂O₉. Katowice: Uniwersytet Śląski, 2012.

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Zhu, Xinhua. Piezoelectric ceramic materials: Processing, properties, characterization, and applications. Hauppauge, N.Y: Nova Science Publishers, 2010.

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A, Parinov Ivan, ed. Piezoceramic materials and devices. Hauppauge, N.Y: Nova Science Publishers, 2009.

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Akopyan, Vladimir A. Definition of constants for piezoceramic materials. New York: Nova Science Publishers, 2010.

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A, Akopyan Vladimir, ed. Definition of constants for piezoceramic materials. Hauppauge, N.Y: Nova Science Publishers, 2009.

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Book chapters on the topic "Piezoelectric ceramics"

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Helke, G., and K. Lubitz. "Piezoelectric PZT Ceramics." In Piezoelectricity, 89–130. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-68683-5_4.

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Ando, Akira. "Alkali Niobate Piezoelectric Ceramics." In Lead-Free Piezoelectrics, 177–208. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9598-8_6.

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Kosec, Marija, Barbara Malič, Andreja Benčan, and Tadej Rojac. "KNN-Based Piezoelectric Ceramics." In Piezoelectric and Acoustic Materials for Transducer Applications, 81–102. Boston, MA: Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-76540-2_5.

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Takenaka, Tadashi. "Bismuth-based Piezoelectric Ceramics." In Piezoelectric and Acoustic Materials for Transducer Applications, 103–30. Boston, MA: Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-76540-2_6.

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Safari, A., G. Sa-gong, J. Giniewicz, and R. E. Newnham. "Composite Piezoelectric Sensors." In Tailoring Multiphase and Composite Ceramics, 445–54. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2233-7_35.

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Lee, Hyeong Jae, and Shujun Zhang. "Perovskite Lead-Free Piezoelectric Ceramics." In Lead-Free Piezoelectrics, 291–309. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9598-8_9.

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Yuan, Song Mei, Lu Tao Yan, and Qiang Liu. "A Novel Piezoelectric Nebulizer." In High-Performance Ceramics V, 221–22. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-473-1.221.

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Ji, Ye, Xiang Cheng Chu, Long Tu Li, and Zhi Lun Gui. "A Novel Piezoelectric Micro-Motor Using Multilayer Co-Firing Piezoelectric Ceramics." In High-Performance Ceramics V, 208–10. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-473-1.208.

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Setter, N. "Trends in Ferroelectric/Piezoelectric Ceramics." In Piezoelectricity, 553–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-68683-5_25.

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Uchino, Kenji. "Photomechanical Effects in Piezoelectric Ceramics." In Photomechanical Materials, Composites, and Systems, 275–301. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119123279.ch8.

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Conference papers on the topic "Piezoelectric ceramics"

1

Stranford, Gerald T., Thomas Vencill, David Williams, Bruce Johnson, and Lillian Gutierrez. "Piezoelectric ceramics in ultrasound." In 2014 IEEE International Ultrasonics Symposium (IUS). IEEE, 2014. http://dx.doi.org/10.1109/ultsym.2014.0220.

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Seabaugh, Matthew M., Gwendolyn L. Cheney, Katarzyna Hasinska, Abdul-Maheed Azad, Scott L. Swartz, and William J. Dawson. "Development of a Templated Grain Growth System for Texturing Piezoelectric Ceramics." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/ad-23735.

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Abstract High strain actuation can be obtained by engineering the crystallographic texture of piezoelectric ceramics. Single crystal piezoelectrics have significantly improved strain performance because crystal orientation can be controlled during use — their highly perfect lattice greatly simplifies the crystal orientation. Single crystals have properties significantly better than those of randomly oriented ceramics, but they are expensive and difficult to produce. Highly textured ceramics offer an alternative means of producing easily aligned crystals, as the majority of the crystallites in the ceramic share a common crystallographic orientation. Textured piezoelectric ceramics are expected to provide improved properties compared to untextured ceramics, with lower processing costs than single crystals. NexTech Materials is developing textured piezoelectrics in PMN-PT system via Templated Grain Growth (TGG). In the TGG process, anisotropic template particles are oriented in a fine particle matrix in the green state. During heat treatment, the crystals consume the surrounding matrix, resulting in a textured polycrystal. A TGG system requires both matrix and template particles. The matrix must provide significant driving force for densification and grain growth. Templates must be large, anisotropic, and crystallographically isostructural with the matrix material. Anisotropic template shape is difficult to achieve in perovskite-based piezoelectrics, which have highly symmetric (cubic) crystal structures at their processing temperature. In addition, the matrix environment often contains highly corrosive lead based liquid phases that make chemical stability difficult to achieve. Characterization of textured samples involves texture evaluation and phase analysis via XRD, and SEM analysis of template growth and chemical stability as well as piezoelectric performance measurement The development and characterization of the TGG components and their integration will be discussed.
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Mukherjee, Benoy K., Wei Ren, Shi-Fang Liu, A. J. Masys, and G. Yang. "Nonlinear properties of piezoelectric ceramics." In SPIE's 8th Annual International Symposium on Smart Structures and Materials, edited by Christopher S. Lynch. SPIE, 2001. http://dx.doi.org/10.1117/12.432738.

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O'Neill, Conal, and John Burchfield. "Kinetic ceramics piezoelectric hydraulic pumps." In The 14th International Symposium on: Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, edited by L. Porter Davis, B. K. Henderson, and M. Brett McMickell. SPIE, 2007. http://dx.doi.org/10.1117/12.717015.

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Sun, Chin-Teh, and L. Z. Jiang. "Fatigue behavior of piezoelectric ceramics." In Smart Structures and Materials '97, edited by Wilbur C. Simmons, Ilhan A. Aksay, and Dryver R. Huston. SPIE, 1997. http://dx.doi.org/10.1117/12.267106.

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Huang, Weiqing, Yin Wang, and Song Pan. "Linear motor using stacked piezoelectric ceramics." In 2011 International Conference on Electronics, Communications and Control (ICECC). IEEE, 2011. http://dx.doi.org/10.1109/icecc.2011.6067757.

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Lu, X., and S. Hanagud. "Extended thermodynamic model for piezoelectric ceramics." In 19th AIAA Applied Aerodynamics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2001. http://dx.doi.org/10.2514/6.2001-1356.

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Zhang, Shujun, Ru Xia, and Thomas R. Shrout. "Lead-Free Piezoelectric Ceramics vs. PZT?" In 2006 IEEE International Symposium on the Applications of Ferroelectrics. IEEE, 2006. http://dx.doi.org/10.1109/isaf.2006.4349278.

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Zhang, Shujun, Ru Xia, and Thomas R. Shrout. "Lead-Free Piezoelectric Ceramics vs. PZT?" In 2006 IEEE International Symposium on the Applications of Ferroelectrics. IEEE, 2006. http://dx.doi.org/10.1109/isaf.2006.4387860.

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Aoyagi, R., T. Matsuoka, M. Iwata, and M. Maeda. "Piezoelectric Properties of NaNbO3-BaTiO3 Ceramics." In 2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics. IEEE, 2007. http://dx.doi.org/10.1109/isaf.2007.4393365.

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Reports on the topic "Piezoelectric ceramics"

1

Sayir, Ali, and Alp Sehirlioglu. Piezoelectric Ceramics for High Temperature Actuators. Fort Belvoir, VA: Defense Technical Information Center, July 2009. http://dx.doi.org/10.21236/ada583233.

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Sayir, Ali. Piezoelectric Ceramics for High Temperature Actuators. Fort Belvoir, VA: Defense Technical Information Center, April 2006. http://dx.doi.org/10.21236/ada589651.

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McHenry, K. D., and B. G. Koepke. Mechanical Reliability of Piezoelectric and Dielectric Ceramics. Fort Belvoir, VA: Defense Technical Information Center, June 1988. http://dx.doi.org/10.21236/ada198458.

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McKinstry, Susan T. 10TH US-Japan Seminar on Dielectric and Piezoelectric Ceramics. Fort Belvoir, VA: Defense Technical Information Center, September 2001. http://dx.doi.org/10.21236/ada403905.

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Yoshikawa, Shoko, and S. K. Kurtz. Passive Vibration Damping Materials: Piezoelectric Ceramics Composites for Vibration Damping Applications. Fort Belvoir, VA: Defense Technical Information Center, February 1993. http://dx.doi.org/10.21236/ada260792.

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Yang, Pin, Stephen C. Hwang, Bernhard, Jr Jokiel, and George Robert Burns. Study of methods for automated crack inspection of electrically poled piezoelectric ceramics. Office of Scientific and Technical Information (OSTI), June 2004. http://dx.doi.org/10.2172/919173.

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Rezaei-Hartmann, Nasim, and Rebecca Saive. A step-by-step guide to simulating an ant-like piezoelectric robot. University of Twente, 2023. http://dx.doi.org/10.3990/1.9789036556330.

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This tutorial is about building up a COMSOL model for a robot ant. In this model, we have a robot with a size of a few centimeters and which is based on piezoelectric ceramics. This robot has already been built by the University of Michigan and some COMSOL models only for the legs’ operation are already existing and are published. From what we know, the full ant robot had not been computationally simulated before. Here, we provide a tutorial on how to successfully achieve this task. Furthermore, we uploaded a video on YouTube to visualize the results: https://youtu.be/ePyD8TAQt3I
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Yerganian, S. S. Ceramic Element Bonding For Piezoelectric Motors. Office of Scientific and Technical Information (OSTI), June 2000. http://dx.doi.org/10.2172/756503.

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9

MATERIALS SYSTEMS INC CONCORD MA. Fabrication of Piezoelectric Ceramic/Polymer Composites by Injection Molding. Fort Belvoir, VA: Defense Technical Information Center, April 1993. http://dx.doi.org/10.21236/ada267302.

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MATERIALS SYSTEMS INC CONCORD MA. Manufacturing Demonstration Of Large 1-3 Piezoelectric Ceramic/Polymer Composite Panels Using Ceramic Injection Molding. Fort Belvoir, VA: Defense Technical Information Center, September 1994. http://dx.doi.org/10.21236/ada294555.

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