Download or read book Synthesis Structure and Properties of Perovskite Materials for Multiferroism and Piezoelectricity written by Weimin Zhu and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The structure and properties of the perovskite multiferroic (1-x)BiFeO3-xPbTiO3 ceramics prepared by solid state reaction and single crystals grown from high temperature solution have been systematically investigated. The x-ray phase analysis revealed the existence of a new phase with orthorhombic symmetry, together with the rhombohedral and the tetragonal phases, in the morphotropic phase boundary (MPB) region of this solid solution, which agrees with the domain patterns observed by piezoelectric force microcopy (PFM) on the single crystal. The MPB structure of this system has been updated. The electric study of the (1-x)BiFeO3-xPbTiO3 ceramics by means of impedance spectroscopy suggested that the electric conduction mechanism in this system can be attributed mainly to the hopping of electrons from Fe2+ to Fe3+ through oxygen vacancies. Based on this proposed mechanism, improved dielectric and ferroelectric properties have been realized in BiFe1-xTixO3+x/2-PbTiO3 ceramics via B site aliovalent ionic substitution of Ti4+ for Fe3+ which effectively decreases the oxygen vacancies. The magnetic properties of the (1-x)BiFeO3-xPbTiO3 ceramics were systematically studied. In addition to the antiferromagnetic ordering arising from the superexchange of Fe3+-O-Fe3+ in chemically disordered regions, a magnetic ordering with weak ferromagnetism has been found in the solid solution with composition x around 0.5 at a lower temperature Tc, which is attributed to the long range superexchange through the pathway of Fe3+-O-Ti-O-Fe3+ in the chemically ordered micro-regions with a "super G-type" magnetic structure. Below Tc, the materials show significantly enhanced magnetization from that of bulk BiFeO3. The unusual dependence of Tc on composition is explained based on the competition between the effect of the concentration of chemically ordered micro-regions and that of the coupling distance. The magnetic phase diagram of this system has been established. We have also investigated the (1-x-y)Pb(Yb1/2Nb1/2)O3-xPbZrO3-yPbTiO3 ternary system as new high temperature high performance piezoelectric materials. The room temperature MPB phase diagram of the solid solution has been established by x-ray phase analysis. The excellent piezoelectric performance (d33=1247pC/N), and the high Tc (370 °C) of the ceramics with MPB composition shows the potential for high temperature transduction, actuation, and micro-electro-mechanical system (MEMS) applications.
Download or read book Fundamentals of Perovskite Oxides written by Gibin George and published by CRC Press. This book was released on 2020-10-06 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook entitled Fundamentals of Perovskite Oxides: Synthesis, Structure, Properties and Applications summarizes the structure, synthesis routes, and potential applications of perovskite oxide materials. Since these perovskite-type ceramic materials offer opportunities in a wide range of fields of science and engineering, the chapters are broadly organized into four sections of perovskite-type oxide materials and technology. Covers recent developments in perovskite oxides Serves as a quick reference of perovskite oxides information Describes novel synthesis routes for nanostructured perovskites Discusses comprehensive details for various crystal structures, synthesis methods, properties, and applications Applies to academic education, scientific research, and industrial R&D for materials research in real-world applications like bioengineering, catalysis, energy conversion, energy storage, environmental engineering, and data storage and sensing This book serves as a handy and practical guideline suitable for students, engineers, and researchers working with advanced ceramic materials.
Download or read book Perovskite and Piezoelectric Materials written by Someshwar Pola and published by BoD – Books on Demand. This book was released on 2021-01-27 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigating in the area of perovskite materials and the fabrication of devices for properties in optoelectronics, we have presented a brief outline of perovskite materials. The authors present a fairly comprehensive arrangement of this very active area of research, with its past changes and present position and outlooks. Discussions are presented regarding photocatalysis, fabrication of solar cell devices and their stability, lead-free materials, as well as thermoelectric and piezoelectric applications. In view of the present status of perovskite materials, I am assured that each chapter of the book will be of boundless encouragement for researchers, scientists, and academicians working in this field.
Download or read book Piezoelectric and Perovskite Materials Synthesis Properties and Applications written by Ian Ferrer and published by Willford Press. This book was released on 2023-09-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piezoelectric materials or piezoelectrics are the materials that can produce electric energy when mechanical stress is applied on them. There are two broad categories of piezoelectric materials. First category includes piezoelectric materials that exist in nature and the second category comprises man-made or synthetic materials. Quartz, Rochelle salt, topaz, and tourmaline-group minerals are a few examples of naturally-existing piezoelectrics which are anisotropic dielectrics crystals having a non-centrosymmetric crystal lattice. Piezoelectric materials are widely used in electronic devices such as actuators, sensors, accelerators, ultrasonic motors, transducers, filters, resonators, and micro-electromechanical systems. A perovskite is any material that has a crystal structure that follows the basic chemical formula ABX3. Some of the prominent physical properties of these materials are magnetoresistance, superconductivity and ionic conductivity. They find a variety of applications as photovoltaics, lasers, scintillators and light-emitting diodes. This book outlines the synthesis, properties, and applications of piezoelectric and perovskite materials in detail. It aims to serve as a resource guide for students and researchers alike and contribute to the growth of study on these materials.
Download or read book Biomedical Applications of Perovskites The Era of Bio Piezoelectric Systems written by Atul Thakur and published by Bentham Science Publishers. This book was released on 2024-08-19 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomedical Applications of Perovskites: The Era of Bio-Piezoelectric Systems focuses on recent developments in the area of piezoelectric systems and their biomedical applications. A compilation of 19 edited chapters covers different piezoelectric materials, device designs, and their use cases. Readers will be familiarized with the many perovskite materials being used in research and development as well as the role they play in designing novel medical devices and biomaterials. Key Features - systematically explains the piezoelectric perovskite materials starting from their introduction, their structure and synthesis techniques - explains the key materials used in devices such as pacemakers and nanogenerators - highlights a range of applications including bone regeneration and growth, bone replacement, tissue engineering, dental science, neurotrauma and neurodegenerative disease treatment and bionic prosthesis - discusses future challenges and the roadmap for piezoelectric perovskite materials - Presents scientific references for advanced reading
Download or read book Perovskite Materials written by Likun Pan and published by BoD – Books on Demand. This book was released on 2016-02-03 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book summarizes the current state of the know-how in the field of perovskite materials: synthesis, characterization, properties, and applications. Most chapters include a review on the actual knowledge and cutting-edge research results. Thus, this book is an essential source of reference for scientists with research fields in energy, physics, chemistry and materials. It is also a suitable reading material for graduate students.
Download or read book Synthesis Structure and Properties of High Piezo and Ferroelectric Complex Perovskite Systems written by Yonghong Bing and published by . This book was released on 2005 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The complex morphotropic phase boundary (MPB) behaviour of the relaxor ferroelectric-based (1-x)Pb(Sc1/2Nb1/2)O3 - xPbTi03 (PSN-PT) solid solution system has been investigated systematically by experiments with both ceramics and single crystals. The study of PSN-PT ceramics with compositions within the MPB region by means of dielectric spectroscopy has revealed two phase tãnsitions. A new phase with monoclinic symmetry has been found by X-ray phase analysis. A new phase diagram of PSN-PT solid solution with the MPB region and a curved upper boundary has been established. Single crystals of Pb(Sc1/2Nb1/2)O3 (PSN) and PSN-PT with compositions near or within MPB region have successfully been grown by an improved high temperature solution method using the mixtures of PbO and B203 as flux. The effects of the chemical compositions, such as the ratios of PSN-PT vs. flux and PbO vs. B2O3, on the morphology and quality of grown crystals have been studied. The optimum chemical compositions were proposed, which have led to the growth of high quality crystals. The PSN-PT single crystals of the MPB composition show two phase transitions and complex structure symmetry, typical of the MPB behaviour. The spontaneous phase transitions from the paraelectric to a relaxor, then to a normal ferroelectric state upon cooling have been disclosed in the disordered Pb(Sc1/2Nb1/2)O3 single crystals, with the existence of macro domain state with a possible rhombohedra1 symmetry at room temperature. In comparison, the structural phase transitions and the dielectric properties of Pb(Zn1/3Nb2/3)O3 (PZN) single crystals were also investigated. The electric field induced phase transition from relaxor to ferroelectric state has been revealed and discussed in terms of the kinetics of phase transition in relaxors. In our search for new materials with high piezoelectric performance, we have investigated the solid solution of (1-x)PbSnO3 - xPbTiO3 (PbSnTi) system. Single crystals of PbSnTi with composition x [=] 0.60, close to the MPB have been successfully grown for the first time from high temperature solution. The grown crystals exhibit good dielectric, piezo- and ferroelectric properties, which make them a new family of piezocrystals with relatively high Curie temperature (Tc [==] 206 C̆), potentially promising for electromechanical transducer applications.
Download or read book Design Synthesis and Characterization of High temperature and High performance Piezo ferroelectric Perovskite Materials written by Yi Yuan and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perovskite materials, which constitute one of the most important categories of functional materials due to their superior piezo-/ferroelectric properties, have attracted enormous research interest in materials science and engineering. Rising demands for advanced electromechanical transducers in a wide range of applications have set the challenge for perovskite materials to not only exhibit good piezo-/ferroelectric performance but also to be able to function over wider temperature and electric field ranges. The currently commercial piezo-/ferroelectric perovskite materials suffer from serious issues like a low Curie temperature TC, an even lower phase transition temperature TMPB, and a low coercive field, which makes them unsuitable for high-temperature and/or high-power electromechanical transduction applications. This thesis work focuses on developing high-temperature and high-performance piezo-/ferroelectric perovskite materials, and establishing the structure-property relationships in the available perovskite material systems. Under this objective, a few promising material systems, including the new bismuth-based complex perovskite solid solution (1-x)PbTiO3-xBi(Zn2/3Ta1/3)O3 (BZTa-PT) in the form of ceramics and single crystals, the pseudo-binary (1-x)(0.35BiScO3-0.65PbTiO3)-xPbZrO3 (BS-PT-xPZ) ceramics, and the single crystals of 0.33Pb(Yb1/2Nb1/2)O3-0.23PbZrO3-0.44PbTiO3 (0.33PYN-0.23PZ0.44PT) and 0.25BiScO3-0.17PbZrO3-0.58PbTiO3 (0.25BS-0.17PZ-0.58PT) ternary systems, have been developed in this work. These material systems show high Curie temperatures, enhanced coercive fields, and competitive piezoelectric performance. They constitute new families of piezo-/ferroelectric materials for high-temperature and high-power electromechanical applications. Furthermore, the structure-property correlations in bismuth-based perovskite solid solutions, such as the structural origin for non-monotonic TC trend, the tetragonality relationship with TC and piezo-/ferroelectric performance, the crystal chemistry correlations between piezo-/ferroelectricity and morphotropic phase boundary (MPB), are established, which provide a more insightful understanding of the structure-property correlations in these material systems and a comprehensive guidance for the design and development of novel high-performance piezo-/ferroelectric materials in the future.
Download or read book Revolution of Perovskite written by Narayanasamy Sabari Arul and published by Springer Nature. This book was released on 2020-01-03 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents advanced synthesis techniques for fabricating Perovskite materials with enhanced properties for applications such as energy storage devices, photovoltaics, electrocatalysis, electronic devices, photocatalysts, sensing, and biomedical instruments. The book attempts to fill a gap in the published literature and provide a detailed reference on Perovskite materials. This book will be of use to graduate students and academic and industrial researchers in the fields of solid-state chemistry, physics, materials science, and chemical engineering.
Download or read book Magnetic Perovskites written by Asish K Kundu and published by Springer. This book was released on 2016-02-11 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic perovskite with multi functional properties (magneto-resistive, magneto-dielectric, multiferroics, spintronics, etc.) have attracted increasing attention due to their possible applications towards storage materials and intriguing fundamental Physics. Despite the numerous investigations on multi functional materials in the past few years, a very few magnetic perovskites have been known to realize as ferromagnetic-insulators. In perovskites centred transition metal oxides strong interplay between lattice, charge, spin and/or orbital degrees of freedom provide a fantastic playground to tune their physical properties. The main purpose of this book is to introduce the phenomenon and physics of complex magnetism (phase separation, spin glass, frustrations, etc.) in perovskite manganites and cobaltites via an experimental approach. The book is organized into four chapters; Chap. 1 gives a brief introduction of various interesting phenomena in magnetic perovskites. Chapter 2 describes the results of the investigations on electronic phase separation and glassy ferromagnetism of the hole-doped perovskite manganites and cobaltites. Ordered and disordered effects and related aspects in hole-doped perovskite cobaltites are described in Chap. 3. Finally, in Chap. 4 the bismuth based magnetic perovskite is discussed.
Download or read book Synthesis Structure and Properties of Intergrowth Perovskite Materials and Advanced Materials for Permanent Magnet Applications written by Balakrishnan Shankar and published by . This book was released on 1997 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Perovskite Materials Devices and Integration written by He Tian and published by BoD – Books on Demand. This book was released on 2020-06-10 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perovskites have attracted great attention in the fields of energy storage, pollutant degradation as well as optoelectronic devices due to their excellent properties. This kind of material can be divided into two categories; inorganic perovskite represented by perovskite oxide and organic-inorganic hybrid perovskite, which have described the recent advancement separately in terms of catalysis and photoelectron applications. This book systematically illustrates the crystal structures, physic-chemical properties, fabrication process, and perovskite-related devices. In a word, perovskite has broad application prospects. However, the current challenges cannot be ignored, such as toxicity and stability.
Download or read book Perovskite Structured Materials written by Pankaj Khirade and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a constant need for newer exceptional materials with better than ever properties to achieve new prerequisites of the future society and progress inventive industrial improvement. The potential to combine these oxides in composite structures to produce multifunctional materials has rekindled interest in perovskites (ABO3) compounds over the past 10 years. Because of its intriguing characteristics, such as ferroelectricity, piezoelectricity, superconductivity, multiferroicity, photocatalysis, enormous magnetoresistance, dielectric, ionic conduction characteristics, etc., a huge variety of perovskite types have been thoroughly explored. Current applications for perovskite solids include electronics, geophysics, astronomy, nuclear, optics, medicine, the environment, etc. Perovskite compounds have distinctive features that make them suitable for a variety of commercial and technological applications, including capacitors, non-volatile memories, photo-electrochemical cells, catalysts in contemporary chemistry, actuators and sensors, ultrasonic and underwater devices, drug delivery, spintronics devices, tunable microwave devices, and many others. Potential applications for nanoscale perovskites include energy storage, fuel cells, nanomedicine, molecular computing, nanophotonics adjustable resonant devices, catalysts, and sensors. Nanoscale perovskites have intriguing features that are comparable to or better than those of bulk perovskites. This review includes topics such as perovskite structured materials,Äô chronology, classification, production, crystal structure, special physical properties, and applications.
Download or read book Synthesis Properties and Crystal Chemistry of Perovskite Based Materials written by Winnie Wong-Ng and published by John Wiley & Sons. This book was released on 2012-04-11 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The number of ceramic materials with a perovskite type structure islarge and of considerable technological importance due to theirrich crystal chemistry and structure-property relationships.Applications include multilayer capacitators, piezoelectrictransducers, PTC thermistors, electrooptical modulators, opticalswitches, dielectric resonators, thick film resistors, electronicsensors, electrorestrictive actuators, magnetic bubble memorydevices, laser host materials, ferromagnetic materials, refractoryelectrodes, second harmonic generators, batteries, ceramicelectrodes, thermoelectric devices, and high temperaturesuperconductors. This volume contains papers on the research and development of newperovskite materials for various applications including doping ofexisting perovskite materials as well as processing for improvedproperties.
Download or read book Perovskites written by Maxim Borowski and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perovskite is a calcium titanium oxide mineral species composed of calcium titanate. This book discusses perovskite thin films, which are widely employed in today's advanced technology. The broad range of physical properties in such category of materials has offered various functionalities in devices ranging from dynamic random access memories and ferroelectric nonvolatile memories to piezoelectric and optical devices. The structural, magnetic and electron transport properties of ordered-disordered perskovite cobaltites is discussed as is perovskite-type oxides, ferroelectric PbTiO3 from a single-domain state to composite components, and others.
Download or read book Structure Properties and Preparation of Perovskite type Compounds written by Francis S. Galasso and published by Pergamon. This book was released on 1969 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structure, Properties and Preparation of Perovskite-Type Compounds, Volume 5 presents the various methods of preparing powders, single crystals, and thin films of perovskite-type compounds. This book discusses the structure of perovskite-type compounds and their properties. Organized into 11 chapters, this volume begins with an overview of the structure, properties, and preparation of perovskite-type compounds. This text then examines how X-ray diffraction can be used to determine unit cell data and to orient single crystals. Other chapters consider the effect of nuclear radiation on the prop ...
Download or read book Nanoscale Ferroelectrics and Multiferroics written by Miguel Alguero and published by John Wiley & Sons. This book was released on 2016-03-21 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two volume set reviews the key issues in processing and characterization of nanoscale ferroelectrics and multiferroics, and provides a comprehensive description of their properties, with an emphasis in differentiating size effects of extrinsic ones like boundary or interface effects. Recently described nanoscale novel phenomena are also addressed. Organized into three parts it addresses key issues in processing (nanostructuring), characterization (of the nanostructured materials) and nanoscale effects. Taking full advantage of the synergies between nanoscale ferroelectrics and multiferroics, the text covers materials nanostructured at all levels, from ceramic technologies like ferroelectric nanopowders, bulk nanostructured ceramics and thick films, and magnetoelectric nanocomposites, to thin films, either polycrystalline layer heterostructures or epitaxial systems, and to nanoscale free standing objects with specific geometries, such as nanowires and tubes at different levels of development. This set is developed from the high level European scientific knowledge platform built within the COST (European Cooperation in Science and Technology) Action on Single and multiphase ferroics and multiferroics with restricted geometries (SIMUFER, ref. MP0904). Chapter contributors have been carefully selected, and have all made major contributions to knowledge of the respective topics, and overall, they are among most respected scientists in the field.
