Synthesis and Characterization of Piezo-/ferroelectric Lead Zirconate-Titanate (PZT) Single Crystals and Related Ternary Ceramics PDF Download
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Author: Yujuan Xie
Publisher:
ISBN:
Category :
Languages : en
Pages : 145
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Book Description
Author: Yujuan Xie
Publisher:
ISBN:
Category :
Languages : en
Pages : 145
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Book Description
Author: Bixia Wang
Publisher:
ISBN:
Category :
Languages : en
Pages : 200
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Book Description
Piezo-/ferroelectric materials form an important class of functional materials that can transduce mechanical energy to electrical energy and vice versa. PbZr1-xTixO3 (PZT) ceramics are the most extensively used piezoelectric materials owing to their good piezoelectric and electromechanical properties near the morphotropic phase boundary (MPB). However, the microstructures of this class of materials and the atomistic phenomena that cause the outstanding performance have not been thoroughly understood yet. Therefore, it is of particular interest to grow single crystals of PZT, which are not only necessary for thorough characterization of the anisotropic properties of this system, but also are expected to exhibit superior piezo-/ferroelectric performance over their ceramic counterparts. In this work, PZT single crystals with compositions of x = 0.54 and 0.45 were grown successfully by a top-seeded solution growth (TSSG) method, and characterized by X-ray diffraction, polarized light microscopy (PLM), piezoresponse force microscopy (PFM), and dielectric, ferroelectric, and piezoelectric measurements. On the other hand, given that PZT ceramics used in industry are always chemically modified to obtain desired and enhanced properties for specific applications, we extended our work to grow donor (La3+ and Bi3+)- and acceptor (Mg2+ and Mn2+)-doped PZT single crystals and to investigate the effects of the doping on the structure and properties. The compositions and homogeneity of the as-grown doped PZT single crystals were investigated by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and energy dispersive spectroscopy (EDS). The dielectric, ferroelectric and piezoelectric properties of these single crystals were investigated. These very first set of data on doped PZT single crystals not only provide a better understanding of structure-property relationship of PZT-based single crystals and their doping mechanisms, but also points to the possible applications of doped PZT single crystals as a new high-TC, high-performance piezo-/ferroelectric material. Moreover, there have been pressing demands for lead-free or lead-reduced replacement materials because of the environment concerns arising from the potential toxicity of the lead in high-performance piezo-/ferroelectric material such as PZT. In our search for high-temperature, lead-reduced piezoelectric materials, novel ferroelectric single crystals of complex perovskite ternary solid solution Bi(Zn0.5Ti0.5)O3-PbZrO3-PbTiO3 (BZT-PZ-PT) have been grown for the first time. The structure and properties of these crytals suggest that the BZT-PZ-PT ternary single crystals constitute a new family of high-TC ferroelectric materials, which are promising for various applications such as high-power electromechanical transducers that can operate in a wide temperature range.
Author: T. L. Jordan
Publisher:
ISBN:
Category :
Languages : en
Pages : 30
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Book Description
This review explores piezoelectric ceramics analysis and characterization. The focus is on polycrystalline ceramics; therefore, single crystals, polymeric materials and organic/inorganic composites are outside the scope of this review. To thoroughly grasp the behavior of a piezoelectric polycrystalline ceramic, a basic understanding of the ceramic itself should not be overlooked. To this end, we have presented a brief introduction of the history of piezoelectricity and a discussion on processing of the ceramic and development of the constitutive relations that define the behavior of a piezoelectric material. We have attempted to cover the most common measurement methods as well as introduce parameters of interest. Excellent sources for more in-depth coverage of specific topics can be found in the bibliography. In most cases, we refer to lead zirconate titanate (PZT) to illustrate some of the concepts since it is the most widely used and studied piezoelectric ceramic to date.
Author: M. Lawrence Arokia Dass
Publisher:
ISBN:
Category :
Languages : en
Pages : 340
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Author: Bernard Jaffe
Publisher: Elsevier
ISBN: 0323155685
Category : Technology & Engineering
Languages : en
Pages : 328
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Book Description
Piezoelectric Ceramics focuses on the relationship between piezoelectricity and ferroelectricity as they apply to ceramics, taking into consideration the properties of materials that are being used and possibly be used in the industries. Composed of 12 chapters, the book starts by tracing the history of piezoelectricity and how this affects ceramics. The different measurement techniques are discussed, including dielectric, ferroelectric, and piezoelectric measurements. The book proceeds by discussing Perovskite structure and barium titanate. Covered areas include electric field, piezoelectric properties, particle size effect, and dielectric strength. The properties, compositions, and reactions of various perovskites are discussed. Numerical analyses are presented in this regard. The book also offers interpretations of the experiments conducted. The discussions end with the processes involved in the manufacture and applications of piezoelectric ceramics. Concerns in manufacturing include calcination, grinding, mixing, electroding, firing, and quality control. Piezolectric ceramics are applied in air transducers, instrument transducers, delay line transducers, underwater sound ultrasonic power, and wave filters. The book is important for readers interested in doing research on ceramics.
Author: Toshio Ogawa
Publisher: BoD – Books on Demand
ISBN: 9535125583
Category : Technology & Engineering
Languages : en
Pages : 240
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Book Description
The science and technology in the area of piezoelectric ceramics are extremely progressing, especially the materials research, measurement technique, theory and applications, and furthermore, demanded to fit social technical requests such as environmental problems. While they had been concentrated on piezoelectric ceramics composed of lead-containing compositions, such as lead zirconate titanate (PZT) and lead titanate, at the beginning because of the high piezoelectricity, recently lead water pollution by soluble PZT of our environment must be considered. Therefore, different new compositions of lead-free ceramics in order to replace PZT are needed. Until now, there have been many studies on lead-free ceramics looking for new morphotropic phase boundaries, ceramic microstructure control to realize high ceramic density, including composites and texture developments, and applications to new evaluation techniques to search for high piezoelectricity. The purpose of this book is focused on the latest reports in piezoelectric materials such as lead-free ceramics, single crystals, and thin films from viewpoints of piezoelectric materials, piezoelectric science, and piezoelectric applications.
Author: Erkan Gurdal
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: T. F. Connolly
Publisher: Springer Science & Business Media
ISBN: 1468462105
Category : Science
Languages : en
Pages : 713
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Book Description
Research on ferroelectricity and ferroelectric materials started in 1920 with the discovery by Valasek that the variation of spontaneous polarization in Rochelle salt with sign and magnitude of an applied electric field traced a complete and reproducible hysteresis loop. Activity in the field was sporadic until 1935, when Busch and co-workers announced the observation of similar behavior in potassium dihydrogen phosphate and related compounds. Progress thereafter continued at a modest level with the undertaking of some theoretical as well as further experimental studies. In 1944, von Hippel and co-workers discovered ferroelectricity in barium titanate. The technological importance of ceramic barium titanate and other perovskites led to an upsurge of interest, with many new ferroelectrics being identified in the following decade. By 1967, about 2000 papers on various aspects of ferroelectricity had been published. The bulk of this widely dispersed literature was concerned with the experimental measurement of dielectric, crystallographic, thermal, electromechanical, elastic, optical, and magnetic properties. A critical and excellently organized cpmpilation based on these data appeared in 1969 with the publica tion of Landolt-Bornstein, Volume 111/3. This superb tabulation gave instant access to the results in the literature on nearly 450 pure substances and solid solutions of ferroelectric and antiferroelectric materials. Continuing interest in ferroelectrics, spurred by the growing importance of electrooptic crystals, resulted in the publication of almost as many additional papers by the end of 1969 as had been surveyed in Landolt-Bornstein.
Author: John Francis Dullea
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
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Author: Ernesto Suaste-Gomez
Publisher: BoD – Books on Demand
ISBN: 9533071222
Category : Technology & Engineering
Languages : en
Pages : 306
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Book Description
This book reviews a big window of opportunity for piezoelectric ceramics, such as new materials, material combinations, structures, damages and porosity effects. In addition, applications of sensors, actuators, transducers for ultrasonic imaging, positioning systems, energy harvesting, biomedical and microelectronic devices are described. The book consists of fourteen chapters. The genetic algorithm is used for identification of RLC parameters in the equivalent electrical circuit of piezoelectric transducers. Concept and development perspectives for piezoelectric energy harvesting are described. The characterization of principal properties and advantages of a novel device called ceramic-controlled piezoelectric with a Pt wire implant is included. Bio-compatibility studies between piezoelectric ceramic material and biological cell suspension are exposed. Thus, piezoelectric ceramics have been a very favorable solution as a consequence of its high energy density and the variety of fabrication techniques to obtain bulk or thin films devices. Finally, the readers will perceive a trend analysis and examine recent developments in different fields of applications of piezoelectric ceramics.
