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Innovative Piezo-active Composites And Their Structure - Property Relationships

Innovative Piezo-active Composites And Their Structure - Property Relationships
Author: James I Roscow
Publisher: World Scientific
Total Pages: 255
Release: 2022-09-23
Genre: Technology & Engineering
ISBN: 981126161X
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This monograph provides researchers, engineers, postgraduates and lecturers working in the field of ferroelectric or piezoelectric and related materials with features of the structure-property relationships in modern piezo-active composites. These are piezoelectric composites which are active dielectric materials, which can be poled ferroelectric ceramics or domain-engineered single crystals poled along specific crystallographic directions. Current knowledge of the effective physical properties of these materials is lacking especially due to gaps of information in physical, chemical, microgeometric and technological factors. For composite and transducer design purposes, the expected properties of these piezo-active materials have been theorized through models by the authors and proven in experiments. Various well-known journals have published this research, among many others: Smart Materials and Structures; Journal of Physics D: Applied Physics; IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control; Acta Materialia.The book summarises and generalises a series of authors' works on the problem of the effective properties and related parameters of modern two- and three-component piezo-active composites wherein the microgeometric factor plays the dominating role. Specific examples of the performance of composites based on domain-engineered single crystals are also discussed. New trends are described in the research of modern piezo-active composites with the aim of filling the gaps in piezoelectric materials science. The primary goal of the book is to show advantages of different methods being applied to manufacture and study the functional composites that are suitable for piezoelectric energy harvesting, hydroacoustic, sensor, actuator, and other transducer applications.

Innovative Piezo-Active Composites and Their Structure - Property Relationships

Innovative Piezo-Active Composites and Their Structure - Property Relationships
Author: James I. Roscow
Publisher: World Scientific Publishing Company
Total Pages: 0
Release: 2022-11-17
Genre: Science
ISBN: 9789811261596
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This monograph provides researchers, engineers, postgraduates and lecturers working in the field of ferroelectric or piezoelectric and related materials with features of the structure-property relationships in modern piezo-active composites. These are piezoelectric composites which are active dielectric materials, which can be poled ferroelectric ceramics or domain-engineered single crystals poled along specific crystallographic directions. Current knowledge of the effective physical properties of these materials is lacking especially due to gaps of information in physical, chemical, microgeometric and technological factors. For composite and transducer design purposes, the expected properties of these piezo-active materials have been theorized through models by the authors and proven in experiments. Various well-known journals have published this research, among many others: Smart Materials and Structures; Journal of Physics D: Applied Physics; IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control; Acta Materialia.The book summarises and generalises a series of authors' works on the problem of the effective properties and related parameters of modern two- and three-component piezo-active composites wherein the microgeometric factor plays the dominating role. Specific examples of the performance of composites based on domain-engineered single crystals are also discussed. New trends are described in the research of modern piezo-active composites with the aim of filling the gaps in piezoelectric materials science. The primary goal of the book is to show advantages of different methods being applied to manufacture and study the functional composites that are suitable for piezoelectric energy harvesting, hydroacoustic, sensor, actuator, and other transducer applications.

Advanced Ferroelectric And Piezoelectric Materials: With Improved Properties And Their Applications

Advanced Ferroelectric And Piezoelectric Materials: With Improved Properties And Their Applications
Author: Ivan A Parinov
Publisher: World Scientific
Total Pages: 312
Release: 2024-03-14
Genre: Science
ISBN: 9811284261
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Discover the latest advances in ferroelectric and piezoelectric material sciences with this comprehensive monograph, divided into six chapters, each offering unique insights into the field.Chapter 1 delves into the manufacture and study of new ceramic materials, focusing on complex oxides of various metals (Aurivillius phases). The authors explore layered bismuth titanates and niobates, known for their high Curie temperature, and discuss how varying their chemical composition can lead to significant changes in their electrophysical properties. Chapter 2 explores the fascinating world of ferroelectrics — dielectrics with spontaneous polarization. Mathematical models and approaches of fractional calculus are used to understand the process of polarization switching in these materials, shedding light on the fractality of electrical responses. In Chapter 3, readers gain valuable insights into the inhomogeneous polarization process of polycrystalline ferroelectrics, a crucial stage in creating piezoceramic samples for energy converters. The authors present a comprehensive mathematical model that allows the determination of various characteristics, including dielectric and piezoelectric hysteresis loops and the effect of attenuation processes.Chapter 4 focuses on state-of-the-art piezoelectric energy harvesting, discussing theoretical, experimental, and computer modelling approaches. The authors discuss piezoelectric generators (PEGs) of different types (cantilever, stack and axis) and nonlinear effects arising at their operation. Chapter 5 presents expanded test and finite element models for cantilever-type and axial-type PEGs with active elements. The studies cover various structural and electric schemes of the PEGs with proof mass, bimorph and cylindrical piezoelectric elements, and excitation loads. Finally, Chapter 6 reviews some results in the last five years, obtained in modelling the vibration of devices from piezoactive materials, including five important effects: piezoelectric, flexoelectric, pyroelectric, piezomagnetic and flexomagnetic.As a diverse addition to the literature, this book is a relevant resource for researchers, engineers, and students seeking to expand their knowledge of cutting-edge developments in this exciting field.

Piezo-Active Composites

Piezo-Active Composites
Author: Vitaly Yu. Topolov
Publisher: Springer Science & Business Media
Total Pages: 179
Release: 2013-09-26
Genre: Technology & Engineering
ISBN: 3642383548
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The book is devoted to the problem of microgeometry properties and anisotropy relations in modern piezo-active composites. These materials are characterized by various electromechanical properties and remarkable abilities to convert mechanical energy into electric energy and vice versa. Advantages of the performance of the composites are discussed in the context of the orientation effects, first studied by the authors for main connectivity patterns and with due regard to a large anisotropy of effective piezoelectric coefficients and electromechanical coupling factors. The novelty of the book consists in the systematization results of orientation effects, the anisotropy of piezoelectric properties and their role in forming considerable hydrostatic piezoelectric coefficients, electromechanical coupling factors and other parameters in the composites based on either ferroelectric ceramic or relaxor-ferroelectric single crystals.

Piezo-Active Composites

Piezo-Active Composites
Author: Vitaly Yu. Topolov
Publisher: Springer
Total Pages: 189
Release: 2018-06-30
Genre: Technology & Engineering
ISBN: 3319939289
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This book is devoted to the systematic description of the role of microgeometry of modern piezo-active composites in the formation of their piezoelectric sensitivity. In five chapters, the authors analyse kinds of piezoelectric sensitivity for piezo-active composites with specific connectivity patterns and links between the microgeometric feature and piezoelectric response. The role of components and microgeometric factors is discussed in the context of the piezoelectric properties and their anisotropy in the composites. Interrelations between different types of the piezoelectric coefficients are highlighted. This book fills a gap in piezoelectric materials science and provides readers with data on the piezoelectric performance of novel composite materials that are suitable for sensor, transducer, hydroacoustic, energy-harvesting, and other applications.

Piezoelectric Materials, Composites, and Devices

Piezoelectric Materials, Composites, and Devices
Author: Fumio Narita
Publisher: Academic Press
Total Pages: 0
Release: 2024-06-01
Genre: Technology & Engineering
ISBN: 9780323996679
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Piezoelectric Materials, Composites, and Devices: Fundamentals, Mechanics, and Applications provides insights on developing and applying optimal piezoelectric devices with high performance and durability. Overviews of the fundamentals of piezoelectricity, piezoelectric parameters, and common characterization techniques are given, as are examples of the structures and properties of piezoelectric ceramics, polymers, their composites, and lead-free piezoelectric materials. Reliable characterization of piezoelectric materials and composites by combining numerical simulations with appropriate measurements is covered as well. Basic equations and modeling approaches are also presented, making it easier to understand the stress and electric fields of piezoelectric devices. The book also covers piezoelectric energy harvesters, piezoelectric biosensors, as well as the performance of advanced piezoelectric devices. The final part of the book concentrates on reliability and durability (fracture and fatigue) of piezoelectric materials and composites.

Piezo-Particulate Composites

Piezo-Particulate Composites
Author: Hamideh Khanbareh
Publisher: Springer
Total Pages: 160
Release: 2019-05-25
Genre: Technology & Engineering
ISBN: 3030192040
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This book provides an overview of the current state of the art in novel piezo-composites based on ferroelectrics. Covering aspects ranging from theoretical materials simulation and manufacturing and characterization methods, to the application and performance of these materials, it focuses on the optimization of the material parameters. Presenting the latest findings on modern composites and highlighting the applications of piezoelectric materials for sensors, transducers and hydro-acoustics, the book addresses an important gap in the physics of active dielectrics and materials science and describes new trends in the research on ferroelectric composites.

Piezoelectric Energy Harvesting

Piezoelectric Energy Harvesting
Author: Alper Erturk
Publisher: John Wiley & Sons
Total Pages: 377
Release: 2011-04-04
Genre: Technology & Engineering
ISBN: 1119991358
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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.