Download or read book Structural Dielectric and Vibrational Studies of Lead Magnesium Niobate Lead Titanate 1 x PbMg1 3Nb2 3O3 xPbTiO3 Solied Solutions written by Aneta Słodczyk and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Dielectric and Vibrational Studies of Lead Magnesium Niobate Lead Titanate 1 x PbMg1 3Nb2 3O3 xPbTiO3 Solid Solutions written by Aneta Slodczyk and published by . This book was released on 2006 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ceramic Abstracts written by American Ceramic Society and published by . This book was released on 1996 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ELECTROMECHANICAL CHARACTERIZATION OF LEAD MAGNESIUM NIOBATE BASED THIN FILMS written by Smitha Shetty and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Lead Magnesium Niobate (PMN) is the most studied relaxor ferroelectric compound with cation order intimately interacting with nanoscale polar heterogeneities. In undoped bulk PMN, the cation order can hardly be changed, while the polar order is quite responsive to external stimuli (electric field and temperature). Moreover, PMN-based oxides are of technological importance, displaying strong piezoelectric effects, high electrostrictive strains, and unusually high dielectric permittivity. The local compositional heterogeneity associated with short-range ordering of Mg and Nb in PbMg1/3Nb2/3O3 (PMN) is correlated with its characteristic relaxor ferroelectric behavior. Fully-ordered PMN has not been prepared as a bulk material. This work reports the growth and characterization of thin film PMN heterostructures with long-range cation order. These films were grown at temperatures below 1073 K by artificially reducing the degree of disorder via synthesis of heterostructures with alternate layers of Pb(Mg2/3Nb1/3)O3 and PbNbO3, as suggested by the random-site model. 100-nm-thick, phase-pure films were grown epitaxially on (111) SrTiO3 substrates using alternate target timed pulsed-laser deposition of Pb(Mg2/3Nb1/3)O3 and PbNbO3 targets with 20% excess Pb. Selected area electron diffraction confirmed the emergence of (1/2, 1/2, 1/2) superlattice spots with randomly distributed ordered domains as large as ~150 nm. These heterostructures exhibited a dielectric constant of 800, loss tangents of ~0.03 and 2 x remanent polarization of ~11 C/cm2 at room temperature. Polarization-electric field hysteresis loops, Rayleigh data, and optical second-harmonic generation measurements are consistent with the development of ferroelectric domains below 140 K. Temperature-dependent permittivity measurements demonstrate reduced frequency dispersion compared to short range ordered PMN films. Although perfectly layered heterostructures could not be grown, the novelty of this work lies in achieving the highest cation order in PMN. Further, these engineered films exhibit a continuum between normal and relaxor ferroelectric behavior as a function of temperature. The dynamic nonlinear dielectric responses were also studied as a function of temperature and electric field for the PMN thin films with long- and short-range ordering. It was found that long-range ordering decreased the dispersion in the first and third harmonic displacement current relative to short-range ordered films. For both sets of films, a second harmonic component of the dielectric response was also detected. The phase angles of the higher harmonic responses were used to probe the continuum in ferroelectric- relaxor behavior in these films. At high temperatures (e.g. above the freezing temperature), the presence of nanopolar clusters is believed to cause the strong dispersion in the third harmonic response in both long range and short-range films. However, at lower temperatures, changes in the sign of 3 suggest long-range ferroelectric ordering, such that the response of mobile interfaces (believed to be domain walls) dominate the response. Additionally, miniaturization of PMN based ferroelectric films for actuator applications necessitates quantification of piezoelectric properties with scaling. A single beam laser interferometer based on a modified Mirau detection scheme with a vertical resolution of 5pm was developed for localized d33 measurements on patterned piezoelectric films. The tool provides high spatial resolution (2m), essential for understanding scaling and processing effects in piezoelectric materials. This approach enables quantitative information on d33, currently difficult in local measurement techniques such as piezoresponse force microscopy. The interferometer is built in a custom microscope and employs a phase lock-in technique in order to detect sub-Angstrom displacements. d33 measurements on single crystal 0.67PbMg0.33Nb0.67O3-0.33PbTiO3 and bulk PbZrTiO3-5A ceramics demonstrated agreement within
Download or read book Polar Oxides written by Rainer Waser and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, more than 20 experts from leading research institutes around the world present the entire scope of this rapidly developing field. In so doing, they cover a wide range of topics, including the characterization and investigation of structural, dielectric and piezoelectric properties of ceramic materials, a well as phase transitions, electrical and optical properties and microscopic investigations. Another feature is a complete profile of the properties of polar oxides -- from their proof to their latest applications. Throughout, the authors review, discuss and assess the material properties with regard to new and advanced characterization and imaging techniques. For physicists, physicochemists, semiconductor and solid state physicists, materials scientists, and students of chemistry and physics.
Download or read book Ferroelectric Domain Walls written by Jill Guyonnet and published by Springer Science & Business Media. This book was released on 2014-04-08 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using the nano metric resolution of atomic force microscopy techniques, this work explores the rich fundamental physics and novel functionalities of domain walls in ferroelectric materials, the nano scale interfaces separating regions of differently oriented spontaneous polarization. Due to the local symmetry-breaking caused by the change in polarization, domain walls are found to possess an unexpected lateral piezoelectric response, even when this is symmetry-forbidden in the parent material. This has interesting potential applications in electromechanical devices based on ferroelectric domain patterning. Moreover, electrical conduction is shown to arise at domain walls in otherwise insulating lead zirconate titanate, the first such observation outside of multiferroic bismuth ferrite, due to the tendency of the walls to localize defects. The role of defects is then explored in the theoretical framework of disordered elastic interfaces possessing a characteristic roughness scaling and complex dynamic response. It is shown that the heterogeneous disorder landscape in ferroelectric thin films leads to a breakdown of the usual self-affine roughness, possibly related to strong pinning at individual defects. Finally, the roles of varying environmental conditions and defect densities in domain switching are explored and shown to be adequately modelled as a competition between screening effects and pinning.
Download or read book Advances in Ceramics written by Costas Sikalidis and published by BoD – Books on Demand. This book was released on 2011-09-06 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current book consists of twenty-four chapters divided into three sections. Section I includes fourteen chapters in electric and magnetic ceramics which deal with modern specific research on dielectrics and their applications, on nanodielectrics, on piezoceramics, on glass ceramics with para-, anti- or ferro-electric active phases, of varistors ceramics and magnetic ceramics. Section II includes seven chapters in bioceramics which include review information and research results/data on biocompatibility, on medical applications of alumina, zirconia, silicon nitride, ZrO2, bioglass, apatite-wollastonite glass ceramic and b-tri-calcium phosphate. Section III includes three chapters in applications of ceramics in environmental improvement and protection, in water cleaning, in metal bearing wastes stabilization and in utilization of wastes from ceramic industry in concrete and concrete products.
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 Waste Energy Harvesting written by Ling Bing Kong and published by Springer Science & Business Media. This book was released on 2014-03-25 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waste Energy Harvesting overviews the latest progress in waste energy harvesting technologies, with specific focusing on waste thermal mechanical energies. Thermal energy harvesting technologies include thermoelectric effect, storage through phase change materials and pyroelectric effect. Waste mechanical energy harvesting technologies include piezoelectric (ferroelectric) effect with ferroelectric materials and nanogenerators. The book aims to strengthen the syllabus in energy, materials and physics and is well suitable for students and professionals in the fields.
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 Frontiers of Ferroelectricity written by Sidney B. Lang and published by Springer Science & Business Media. This book was released on 2007-12-31 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents theory, fundamentals and applications of ferroelectricy. 24 chapters gather reviews and research reports covering the spectrum of ferroelectricity. It describes the current levels of understanding of various aspects of ferroelectricity as presented by authorities in the field. Topics include relaxors, piezoelectrics, microscale and nanoscale studies, polymers and composites, unusual properties, and techniques and devices. The book is intended for physicists, engineers and materials scientists working with ferroelectric materials.
Download or read book Characterisation of Ferroelectric Bulk Materials and Thin Films written by Markys G. Cain and published by Springer. This book was released on 2014-06-02 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive review of the most important methods used in the characterisation of piezoelectric, ferroelectric and pyroelectric materials. It covers techniques for the analysis of bulk materials and thick and thin film materials and devices. There is a growing demand by industry to adapt and integrate piezoelectric materials into ever smaller devices and structures. Such applications development requires the joint development of reliable, robust, accurate and – most importantly – relevant and applicable measurement and characterisation methods and models. In the past few years there has been a rapid development of new techniques to model and measure the variety of properties that are deemed important for applications development engineers and scientists. The book has been written by the leaders in the field and many chapters represent established measurement best practice, with a strong emphasis on application of the methods via worked examples and detailed experimental procedural descriptions. Each chapter contains numerous diagrams, images, and measurement data, all of which are fully referenced and indexed. The book is intended to occupy space in the research or technical lab, and will be a valuable and practical resource for students, materials scientists, engineers, and lab technicians.
Download or read book Disorder and Strain Induced Complexity in Functional Materials written by Tomoyuki Kakeshita and published by Springer Science & Business Media. This book was released on 2011-10-27 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together an emerging consensus on our understanding of the complex functional materials including ferroics, perovskites, multiferroics, CMR and high-temperature superconductors. The common theme is the existence of many competing ground states and frustration as a collusion of spin, charge, orbital and lattice degrees of freedom in the presence of disorder and (both dipolar and elastic) long-range forces. An important consequence of the complex unit cell and the competing interactions is that the emergent materials properties are very sensitive to external fields thus rendering these materials with highly desirable, technologically important applications enabled by cross-response.
Download or read book Ferroelectric Thin Films written by Masanori Okuyama and published by Springer Science & Business Media. This book was released on 2005-02-22 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ferroelectric thin films continue to attract much attention due to their developing applications in memory devices, FeRAM, infrared sensors, piezoelectric sensors and actuators. This book, aimed at students, researchers and developers, gives detailed information about the basic properties of these materials and the associated device physics. The contributing authors are acknowledged experts in the field.
Download or read book Measurement Instrumentation and Sensors Handbook Second Edition written by John G. Webster and published by CRC Press. This book was released on 2014-01-29 with total page 1641 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Second Edition of the bestselling Measurement, Instrumentation, and Sensors Handbook brings together all aspects of the design and implementation of measurement, instrumentation, and sensors. Reflecting the current state of the art, it describes the use of instruments and techniques for performing practical measurements in engineering, physics, chemistry, and the life sciences and discusses processing systems, automatic data acquisition, reduction and analysis, operation characteristics, accuracy, errors, calibrations, and the incorporation of standards for control purposes. Organized according to measurement problem, the Spatial, Mechanical, Thermal, and Radiation Measurement volume of the Second Edition: Contains contributions from field experts, new chapters, and updates to all 96 existing chapters Covers instrumentation and measurement concepts, spatial and mechanical variables, displacement, acoustics, flow and spot velocity, radiation, wireless sensors and instrumentation, and control and human factors A concise and useful reference for engineers, scientists, academic faculty, students, designers, managers, and industry professionals involved in instrumentation and measurement research and development, Measurement, Instrumentation, and Sensors Handbook, Second Edition: Spatial, Mechanical, Thermal, and Radiation Measurement provides readers with a greater understanding of advanced applications.
Download or read book Magnetic Ceramics written by American Ceramic Society. Meeting and published by . This book was released on 1995 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: From an April 1994 symposium in Indianapolis, 31 papers focus on the manufacture of magnetic ceramics in light of new demands by consumers and the total quality movement. They cover advances in manufacturing such as using standard normal quantile plots to improve process yields and experimental desi
Download or read book Perovskites written by Richard J. D. Tilley and published by John Wiley & Sons. This book was released on 2016-03-03 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uniquely describes both the crystallography and properties of perovskite related materials. Practical applications in solar cells, microelectronics and telecommunications Interdisciplinary topic drawing on materials science, chemistry, physics, and geology Contains problems and answers to enhance knowledge retention
