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Flexoelectricity in Ceramics and their Application

Author : Satyanarayan Patel

Publisher : Elsevier

Page : 462 pages

File Size : 28,80 MB

Release : 2023-08-29

Category : Technology & Engineering

ISBN : 0323952712

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Book Description

Flexoelectricity is the ability of materials to generate a voltage when they are bent or, conversely, to bend under voltage. Flexoelectricity can be present in all materials; however, the magnitude of the flexoelectric coefficients is so small that flexoelectricity is virtually imperceptible on the human scale. The book's objective is to look at the flexoelectric effect in ceramics for various applications point of view such as sensor, actuator and energy harvesting etc. It briefly discusses the flexoelectric effect theories and models with the latest development in this field. Several methods are discussed to increase the flexoelectric effect in ferroelectric and other ceramics. It focused on the latest development in various possible applications such as flexopyroelectric, flexocaloric and nano energy generators. Apart from these, it will also discuss the inverse flexoelectric effect, flexoelectric effect in 2D materials, ambiguities and controversies in this field. This book resolved many questions related to flexoelectricity and made significant discoveries with profound implications beyond flexoelectricity, in such diverse areas as caloric or MEMS devices, etc. It covers the most recent breakthroughs in nano-generator, composite-based ceramics to maximize energy harvesting and storage. Therefore, this book will be handy for a researcher working in this direction of ceramics and can be a reference book for allied specializations. It will open a new approach to using the flexoelectric effect in various ceramics and varieties of applications. - Provides an in-depth study of the flexoelectric effect of a broad range of ceramic materials - It updates the state of art progress that has been done in the area of flexoelectric-based energy harvesting via nano-generator or nanocomposites of ceramics - Provides most recent advancement in the area of lead-free, lead-based ceramics, 2D material, flexocaloric and flexopyroelectric applications - The inverse flexoelectric effect is discussed in detail, which helps newcomers and expert researchers, scientists, and engineers working in this field - Includes an evaluation of ambiguities and controversies about the flexoelectric effect



Flexoelectricity in Liquid Crystals

Author : Agnes Buka

Publisher : World Scientific

Page : 299 pages

File Size : 25,26 MB

Release : 2013

Category : Science

ISBN : 1848167997

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Book Description

The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.



Flexoelectricity In Solids: From Theory To Applications

Author : Alexander K Tagantsev

Publisher : World Scientific

Page : 413 pages

File Size : 37,67 MB

Release : 2016-08-11

Category : Technology & Engineering

ISBN : 9814719331

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Book Description

This unique compendium is devoted to flexoelectricity — the response of polarization to a strain gradient. The effect is analogous to piezoelectricity which is the response of polarization to strain itself. In contrast to piezoelectricity, which appears only in non-centrosymmetric materials, flexoelectric effect is allowed by symmetry in any materials. It becomes appreciable in nano-scale systems, where large strain gradients arise. The book discusses different nano-scale manifestations of the effect ranging from repulsion of acoustic and optic branches of materials to flexoelectricity in domain walls. It mainly caters for scientists, engineers and students.



Piezoelectric Nanomaterials for Biomedical Applications

Author : Gianni Ciofani

Publisher : Springer Science & Business Media

Page : 250 pages

File Size : 31,73 MB

Release : 2012-03-31

Category : Technology & Engineering

ISBN : 3642280447

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Book Description

Nanoscale structures and materials have been explored in many biological applications because of their novel and impressive physical and chemical properties. Such properties allow remarkable opportunities to study and interact with complex biological processes. This book analyses the state of the art of piezoelectric nanomaterials and introduces their applications in the biomedical field. Despite their impressive potentials, piezoelectric materials have not yet received significant attention for bio-applications. This book shows that the exploitation of piezoelectric nanoparticles in nanomedicine is possible and realistic, and their impressive physical properties can be useful for several applications, ranging from sensors and transducers for the detection of biomolecules to “sensible” substrates for tissue engineering or cell stimulation.



Structural Health Monitoring (SHM) in Aerospace Structures

Author : Fuh-Gwo Yuan

Publisher : Woodhead Publishing

Page : 516 pages

File Size : 26,39 MB

Release : 2016-03-01

Category : Technology & Engineering

ISBN : 0081001584

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Book Description

Structural Health Monitoring (SHM) in Aerospace Structures provides readers with the spectacular progress that has taken place over the last twenty years with respect to the area of Structural Health Monitoring (SHM). The widespread adoption of SHM could both significantly improve safety and reduce maintenance and repair expenses that are estimated to be about a quarter of an aircraft fleet's operating costs. The SHM field encompasses transdisciplinary areas, including smart materials, sensors and actuators, damage diagnosis and prognosis, signal and image processing algorithms, wireless intelligent sensing, data fusion, and energy harvesting. This book focuses on how SHM techniques are applied to aircraft structures with particular emphasis on composite materials, and is divided into four main parts. Part One provides an overview of SHM technologies for damage detection, diagnosis, and prognosis in aerospace structures. Part Two moves on to analyze smart materials for SHM in aerospace structures, such as piezoelectric materials, optical fibers, and flexoelectricity. In addition, this also includes two vibration-based energy harvesting techniques for powering wireless sensors based on piezoelectric electromechanical coupling and diamagnetic levitation. Part Three explores innovative SHM technologies for damage diagnosis in aerospace structures. Chapters within this section include sparse array imaging techniques and phase array techniques for damage detection. The final section of the volume details innovative SHM technologies for damage prognosis in aerospace structures. This book serves as a key reference for researchers working within this industry, academic, and government research agencies developing new systems for the SHM of aerospace structures and materials scientists. - Provides key information on the potential of SHM in reducing maintenance and repair costs - Analyzes current SHM technologies and sensing systems, highlighting the innovation in each area - Encompasses chapters on smart materials such as electroactive polymers and optical fibers



Advanced Ceramics for Energy Storage, Thermoelectrics and Photonics

Author : Peng Cao

Publisher : Elsevier

Page : 540 pages

File Size : 19,42 MB

Release : 2023-04-06

Category : Technology & Engineering

ISBN : 0323907628

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Book Description

Advanced Ceramics for Energy Storage, Thermoelectrics and Photonics describes recent progress in ceramic synthesis and applications in the areas of rechargeable batteries, capacitors, fuel cells, ferroelectrics, thermoelectrics, and inorganic luminescence materials. Both fundamental scientific advancements and technological breakthroughs in terms of new ceramic chemistries, new synthesis methodologies, and new applications are discussed in detail. The latest developments in advanced electrodes, ionic conductors, catalysts, thermoelectric ceramics, and luminescent powders/ceramics and their applications are also covered. With its focus on energy-related applications, the book will be a valuable reference resource for new researchers, academics, and postgraduate students who are interested in delving deeper into energy-related materials research, in particular, the areas of electronic and optical ceramics and their potential applications. - Covers three key areas of ceramics science: electrochemical energy conversion, thermoelectrics, and photonics - An entire section that explains the fundamental theory that lies behind new ceramic chemistries and synthesis methodologies - Complex perspectives are explained, such as solid electrolytes and the coupling between thermal and electric phenomena and optical properties as well as electrodes, ionic conductors, catalysts, thermoelectric ceramics and their applications - Discusses challenges that new ceramic technology is currently facing and the potential solutions for commercial success



Ferroelectric Materials for Energy Harvesting and Storage

Author : Deepam Maurya

Publisher : Woodhead Publishing

Page : 374 pages

File Size : 47,88 MB

Release : 2020-10-14

Category : Technology & Engineering

ISBN : 0081028792

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Book Description

The need to more efficiently harvest energy for electronics has spurred investigation into materials that can harvest energy from locally abundant sources. Ferroelectric Materials for Energy Harvesting and Storage is the first book to bring together fundamental mechanisms for harvesting various abundant energy sources using ferroelectric and piezoelectric materials. The authors discuss strategies of designing materials for efficiently harvesting energy sources like solar, wind, wave, temperature fluctuations, mechanical vibrations, biomechanical motion, and stray magnetic fields. In addition, concepts of the high density energy storage using ferroelectric materials is explored. Ferroelectric Materials for Energy Harvesting and Storage is appropriate for those working in materials science and engineering, physics, chemistry and electrical engineering disciplines. - Reviews wide range of energy harvesting including solar, wind, biomechanical and more - Discusses ferroelectric materials and their application to high energy density capacitors - Includes review of fundamental mechanisms of energy harvesting and energy solutions, their design and current applications, and future trends and challenges



Electroceramics for High Performance Supercapicitors

Author : Inamuddin

Publisher : John Wiley & Sons

Page : 258 pages

File Size : 17,14 MB

Release : 2023-10-13

Category : Technology & Engineering

ISBN : 1394167148

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Book Description

ELECTROCERAMICS FOR HIGH PERFORMANCE SUPERCAPACITORS The book describes the state-of-the-art analyses of high-density supercapacitors. In the near future, high-energy density materials will be required to accommodate the increased demand for gadgets, hybrid cars, and massive electrical energy storage systems. Fuel cells, supercapacitors, and batteries have the highest energy densities, but traditional capacitors have gained attention for intermittent energy harvesting owing to their high energy transfer rate and quick charging/discharging capability. The large amount of electric breakdown strength and modest remnant polarization are keys to the high energy density in dielectric capacitors. Above 100??C or 212??F, polymer dielectric capacitors become unstable and begin to suffer a dielectric breakdown. Hence, dielectric ceramics are the sole viable option for high-temperature applications. This book provides a basic understanding of dielectric-based energy harvesting. After a detailed analysis of the state-of-the-art, it proceeds to explain the specific strategies to enhance energy storage features, including managing the local structure and phases assembly, raising the dielectric width, and enhancing microstructure and electrical uniformity. Also discussed is the need for novel materials with applications in high-density supercapacitors. Audience The book is designed for engineers, industrialists, physicists, scientists, and researchers who work on the applications of high-density supercapacitors.



Handbook of Liquid Crystals, 8 Volume Set

Author : John W. Goodby

Publisher : John Wiley & Sons

Page : 5240 pages

File Size : 42,95 MB

Release : 2014-04-14

Category : Technology & Engineering

ISBN : 3527327738

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Book Description

Much more than a slight revision, this second edition of the successful "Handbook of Liquid Crystals" is completely restructured and streamlined, with updated as well as completely new topics, 100% more content and a new team of editors and authors. As such, it fills the gap for a definitive, single source reference for all those working in the field of organized fluids and will set the standard for the next decade. The Handbook's new structure facilitates navigation and combines the presentation of the content by topic and by liquid-crystal type: A fundamentals volume sets the stage for an understanding of the liquid crystal state of matter, while individual volumes cover the main types and forms, with a final volume bringing together the diverse liquid crystal phases through their applications. This unrivaled, all-embracing coverage represents the undiluted knowledge on liquid crystals, making the Handbook a must-have wherever liquid crystals are investigated, produced or used, and in institutions where their science and technology is taught. Also available electronically on Wiley Online Library, www.wileyonlinelibrary.com/ref/holc Volume 1: Fundamentals of Liquid Crystals Volume 2: Physical Properties and Phase Behavior of Liquid Crystals Volume 3: Nematic and Chiral Nematic Liquid Crystals Volume 4: Smectic and Columnar Liquid Crystals Volume 5: Non-Conventional Liquid Crystals Volume 6: Nanostructured and Amphiphilic Liquid Crystals Volume 7: Supermolecular and Polymeric Liquid Crystals Volume 8: Applications of Liquid Crystals



Piezoelectric Actuators and Generators for Energy Harvesting

Author : Sergey N. Shevtsov

Publisher : Springer

Page : 189 pages

File Size : 34,67 MB

Release : 2018-04-20

Category : Technology & Engineering

ISBN : 331975629X

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Book Description

This book presents new approaches to R&D of piezoelectric actuators and generators of different types based on established, original constructions and contemporary research into framework of theoretical, experimental, and numerical methods of physics, mechanics, and materials science. Improved technical solutions incorporated into the devices demonstrate high output values of voltage and power, allowing application of the goods in various areas of energy harvesting. The book is divided into seven chapters, each presenting main results of the chapter, along with a brief exposition of novel findings from around the world proving context for the author’s results. It presents particular results of the Soviet and Russian schools of Mechanics and Material Sciences not previously available outside of Russia.