Download or read book Growth and Characterization of Lead free K Na NbO3 based Piezoelectric Single Crystals written by Hairui Liu and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lead Free Piezoelectric Materials written by Jing-Feng Li and published by John Wiley & Sons. This book was released on 2021-07-06 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides in-depth knowledge on lead-free piezoelectrics - for state-of-the-art, environmentally friendly electrical and electronic devices! Lead zirconate titanate ceramics have been market-dominating due to their excellent properties and flexibility in terms of compositional modifications. Driven by the Restriction of Hazardous Substances Directive, there is a growing concern on the toxicity of lead. Therefore, numerous research efforts were devoted to lead-free piezoelectrics from the beginning of this century. Great progress has been made in the development of high-performance lead-free piezoelectric ceramics which are already used, e.g., for power electronics applications. Lead-Free Piezoelectric Materials provides an in-depth overview of principles, material systems, and applications of lead-free piezoelectric materials. It starts with the fundamentals of piezoelectricity and lead-free piezoelectrics. Then it discusses four representative lead-free piezoelectric material systems from background introduction to crystal structures and properties. Finally, it presents several applications of lead-free piezoelectrics including piezoelectric actuators, and transducers. The challenges for promoting applications will also be discussed. Highly attractive: Lead-free piezoelectrics address the growing concerns on exclusion of hazardous substances used in electrical and electronic devices in order to protect human health and the environment Thorough overview: Covers fundamentals, different classes of materials, processing and applications Unique: discusses fundamentals and recent advancements in the field of lead-free piezoelectrics Lead-Free Piezoelectric Materials is of high interest for material scientists, electrical and chemical engineers, solid state chemists and physicists in academia and industry.
Download or read book Lead Free Piezoelectrics written by Shashank Priya and published by Springer Science & Business Media. This book was released on 2011-11-19 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological restrictions in many parts of the world are demanding the elimination of Pb from all consumer items. At this moment in the piezoelectric ceramics industry, there is no issue of more importance than the transition to lead-free materials. The goal of Lead-Free Piezoelectrics is to provide a comprehensive overview of the fundamentals and developments in the field of lead-free materials and products to leading researchers in the world. The text presents chapters on demonstrated applications of the lead-free materials, which will allow readers to conceptualize the present possibilities and will be useful for both students and professionals conducting research on ferroelectrics, piezoelectrics, smart materials, lead-free materials, and a variety of applications including sensors, actuators, ultrasonic transducers and energy harvesters.
Download or read book Growth and Characterization of Lead Zirconate Titanate PbZr1 xTixO3 Based Novel Piezo Ferroelectric Single Crystals written by Bixia Wang and published by . This book was released on 2016 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Advances in Lead Free Piezoelectric Materials written by Jiagang Wu and published by Springer. This book was released on 2018-08-22 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically reviews the history of lead-free piezoelectric materials, including the latest research. It also addresses a number of important issues, such as new types of materials prepared in a multitude of sizes, structural and physical properties, and potential applications for high-performance devices. Further, it examines in detail the state of the art in lead-free piezoelectric materials, focusing on the pathways to modify different structures and achieve enhanced physical properties and new functional behavior. Lastly, it discusses the prospects for potential future developments in lead-free piezoelectric materials across disciplines and for multifunctional applications. Given its breadth of coverage, the book offers a comprehensive resource for graduate students, academic researchers, development scientists, materials producers, device designers and applications engineers who are working on or are interested in advanced lead-free piezoelectric materials.
Download or read book Resource for Piezoelectric Single Crystals written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents work performed over the period of April 1, 1998-July 1, 2001 under the ONR/DARPA program titled 'Resource for Piezoelectric Single Crystals', contract no. N00014-98-1-0527. The program encompasses novel piezoelectric materials, characterization, and domain studies, innovative growth technique and device engineering, the latter including MEMS and electro-optics. Research on this program is represented in the technical appendices. The program was on domain/crystallographic engineering of Relaxor-PT single crystals, e.g., Pb(Zn(1/3)Nb(2/3))O3-PbTiO3 and Pb(Mg(1/3)Nb(2/3))O3-PbTiO3. From this program, it was confirmed that in single crystal form, Relaxor-PT materials offer significant piezoelectric performance with coupling coefficients greater than 90% and strains exceeding 1%. In Characterization, the complete set of dielectric, piezoelectric, and elastic coefficients were determined for 100 domain engineering rhombohedral PZN-4.5%PT, PZN-8%PT, and PMN-33%PT crystals. For all the systems characterized, coupling coefficients (k33> 90%) with piezoelectric strain coefficients (d33> 2000 pC/N) were found. The concept of cryogenic poling was utilized to reduce property variation among crystals relatively close to the morphotropic phase boundary, due to rhombohedral-tetragonal transformations. Domain studies revealed the complexity of the crystals in terms of the macrosymmetry being orthorhombic mm2 or lower than the assumed 4mm. The possibility of a monoclinic phase was suggested to aid in the understanding of the complex domain configuration of underlying high piezoelectric activity. In addition to high temperature flux and Bridgman growth technique, Laser Heating Pedestal Growth crystal of non-lead Zr modified BaTiO3 and PMN-PT were successfully grown with rates> 0.3 mm/min. The concept of domain engineering was demonstrated on non-PbO ferroelectrics with enhanced levels of piezoelectric activity confirmed.
Download or read book Piezoelectric Ceramics written by and published by . This book was released on 1996 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ferroelectrics written by Mickaël Lallart and published by BoD – Books on Demand. This book was released on 2011-08-24 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ferroelectric materials have been and still are widely used in many applications, that have moved from sonar towards breakthrough technologies such as memories or optical devices. This book is a part of a four volume collection (covering material aspects, physical effects, characterization and modeling, and applications) and focuses on ways to obtain high-quality materials exhibiting large ferroelectric activity. The book covers the aspect of material synthesis and growth, doping and composites, lead-free devices, and thin film synthesis. The aim of this book is to provide an up-to-date review of recent scientific findings and recent advances in the field of ferroelectric materials, allowing a deep understanding of the material aspects of ferroelectricity.
Download or read book Synthesis and Characterization of Lead free Perovskite Solid Solutions written by Jenny Yeuw Yeen Wong and published by . This book was released on 2015 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piezo-/ferroelectrics form an important class of functional materials that can transduce mechanical energy to electrical energy and vice versa. They have large impacts in medicine (ultrasound imaging), in naval exploration/defence (sonar) and in consumer products (random access memories, capacitors). Currently, there is high interest in the development of new lead-free materials due to health and environmental risk factors of high-performance lead-based materials, such as Pb(Zr,Ti)O3. One promising lead-free system is the (K,Na)NbO3 (KNN) solid solution, as it has a high Curie temperature, which allows for a wide operating temperature range for devices. In order to better understand the structure and property relations, single crystals are needed. In this work, single crystals of K0.1Na0.9NbO3 (KNN) and 0.98K0.8Na0.2NbO3 - 0.02LiNbO3 (KNN-LN) have been grown using a high-temperature solution growth method with K2CO3 and B2O3 as flux. Polarized light microscopy was used to study the Na-rich KNN crystals, and the phase diagram on the Na-rich end of the (1-x)KNbO3 - xNaNbO3 solid solution has been updated. With the intention of addressing the issue of composition segregation, a modified vapour transport equilibration technique has been developed and demonstrated to be a viable approach to increase the Li-content in the KNN-LN crystals. In addition, a new ternary solid solution of y(K0.5Na0.5)NbO3 - (1-y)[(1-x)Bi0.5K0.5TiO3 - xBaTiO3] has been synthesized in the form of ceramics with compositions of y = 0.96 to y = 0.98 and its partial phase diagram has been established. Aside from KNN-based materials, translucent ceramics of (1-x)(Na0.5Bi0.5)TiO3 - xAgNbO3 (NBT-AN) and (1-x)(Na0.5Bi0.5)TiO3 - xAgTaO3 (NBT-AT) have been successfully prepared via a solid state method under ambient pressure. The dielectric permittivity as a function of temperature is found to be constant for compositions of x > 0.12 (e.g. its variation is within ±10 % for both NBT-AN and NBT-AT (x = 0.16) between 0 °C and 350 °C), while the polarization versus electric field relation shows pure capacitive behaviour up to 250 °C. With these properties, NBT-AN and NBT-AT are promising candidates for electro-optics and/or high-temperature capacitors.
Download or read book Electroceramics in Japan XV written by Keiichi Katayama and published by Trans Tech Publications Ltd. This book was released on 2013-07-31 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters CPCI-S (WoS). The major topics covered by this collection include dielectrics, piezoelectric ceramics, ferroelectrics, lead free piezoelectric ceramics, Li-ion battery related materials, secondary batteries, solid oxide fuel cells, dye-sensitized solar cells, properties and processing of thin films, magnetic ceramics, semiconductor ceramics, sensors, and ceramic science and processing. The microstructure of materials varied between single crystals, bulk ceramics, thin films, and nanocrystals. All papers collected in this book were reviewed and cover the latest developments in science and technology of electroceramics.
Download or read book Piezoelectric Materials written by Jiagang Wu and published by John Wiley & Sons. This book was released on 2024-05-14 with total page 841 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piezoelectric Materials Analyze the foundational materials of the electronics industry In recent years piezoelectric materials have become one of the world’s most important classes of functional materials. Their ability to convert between mechanical and electrical energy makes them indispensable for sensors, transducers, actuators, catalysts, and many other foundational electronic devices. As electronics industries expand at unprecedented rates, the range of applications for piezoelectric materials continues to grow. Piezoelectric Materials offers a comprehensive overview of this group of materials, its key properties, and its applications. Beginning with the fundamental science of piezoelectric phenomena, it then analyzes different the numerous different classes of piezoelectric materials and their current and future industrial functions. The result is essential for engineers and materials scientists working in any number of areas. Piezoelectric Materials readers will also find: Analysis of materials types include lead-based and lead-free piezoelectric materials, textured piezoceramics, piezoelectric thin films, and many more Detailed discussion of applications including dielectric energy storage and biomedical technology Authorship by a leading researcher of piezoelectric materials Piezoelectric Materials is ideal for materials scientists, electronic engineers, polymer chemists, solid state chemists, and any other researchers or professionals working with these key materials.
Download or read book Journal of the Physical Society of Japan written by and published by . This book was released on 2004 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electroceramics in Japan XIII written by Shinobu Fujihara and published by Trans Tech Publications Ltd. This book was released on 2010-07-26 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters CPCI-S (WoS). This special collection brings together the latest developments in the science and technology of electroceramics. It focuses upon contributing to the exchange of Electroceramics know-how; both scientific and industrial.
Download or read book Nanoscale Ferroelectric Multiferroic Materials for Energy Harvesting Applications written by Hideo Kimura and published by Elsevier. This book was released on 2019-02-22 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoscale Ferroelectric-Multiferroic Materials for Energy Harvesting Applications presents the latest information in the emerging field of multiferroic materials research, exploring applications in energy conversion and harvesting at the nanoscale. The book covers crystal and microstructure, ferroelectric, piezoelectric and multiferroic physical properties, along with their characterization. Special attention is given to the design and tailoring of ferroelectric, magnetic and multiferroic materials and their interaction among ferroics. The fundamentals of energy conversion are incorporated, along with the requirements of materials for this process. Finally, a range of applications is presented, demonstrating the progression from fundamentals to applied science. This essential resource describes the link between the basic physical properties of these materials and their applications in the field of energy harvest. It will be a useful resource for graduate students, early career researchers, academics and industry professionals working in areas related to energy conversion. - Bridges the gap between the fundamentals and applications of ferroelectric and multiferroic materials for energy harvesting - Demonstrates how a range of nanomaterials play an important role in the creation of efficient energy harvesting systems - Provides new solutions for the fabrication of electronic devices for various applications
Download or read book Piezoelectric Energy Harvesting written by Alper Erturk and published by John Wiley & Sons. This book was released on 2011-04-04 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transformation of vibrations into electric energy through the use of piezoelectric devices is an exciting and rapidly developing area of research with a widening range of applications constantly materialising. With Piezoelectric Energy Harvesting, world-leading researchers provide a timely and comprehensive coverage of the electromechanical modelling and applications of piezoelectric energy harvesters. They present principal modelling approaches, synthesizing fundamental material related to mechanical, aerospace, civil, electrical and materials engineering disciplines for vibration-based energy harvesting using piezoelectric transduction. Piezoelectric Energy Harvesting provides the first comprehensive treatment of distributed-parameter electromechanical modelling for piezoelectric energy harvesting with extensive case studies including experimental validations, and is the first book to address modelling of various forms of excitation in piezoelectric energy harvesting, ranging from airflow excitation to moving loads, thus ensuring its relevance to engineers in fields as disparate as aerospace engineering and civil engineering. Coverage includes: Analytical and approximate analytical distributed-parameter electromechanical models with illustrative theoretical case studies as well as extensive experimental validations Several problems of piezoelectric energy harvesting ranging from simple harmonic excitation to random vibrations Details of introducing and modelling piezoelectric coupling for various problems Modelling and exploiting nonlinear dynamics for performance enhancement, supported with experimental verifications Applications ranging from moving load excitation of slender bridges to airflow excitation of aeroelastic sections A review of standard nonlinear energy harvesting circuits with modelling aspects.
Download or read book Growth and Characterization of Single Crystals of Potassium Sodium Niobate by Solid State Crystal Growth written by Andreja Benčan and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Growth and Characterization of Single Crystals of Potassium Sodium Niobate by Solid State Crystal Growth.
Download or read book Asian Ceramic Science for Electronics III and Electroceramics in Japan XII written by Tadashi Takenaka and published by Trans Tech Publications Ltd. This book was released on 2009-12-03 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: This special collection brings to the reader the latest developments in the science and technology of electroceramics. It focuses on contributing to the exchange of Electroceramics knowledge; both scientific and industrial.
