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.

Autorentext

Hamideh Khanbareh received her BSc degree, in 2008, in Materials Science and Engineering from University of Tehran. In 2012 she received her Cumlaude MSc degree in Aerospace Engineering from Delft University of Technology, Netherlands. Her final project concerned fractal analysis of microstructures of ultra-high strength aluminium alloys for aerospace applications. She then pursued her PhD in Novel Aerospace Materials group, at Delft University of Technology working on functionally graded ferroelectric composites. During her PhD she also worked as a visiting scientist at the Molecular Electronics Research Group at Max Planck Institute for Polymers (MPIP), in Mainz, Germany. In June 2016 she obtained her PhD degree from Delft University of Technology and subsequently was appointed as a Prize Fellow at the Materials and Structures Research Centre, within the Department of Mechanical Engineering at University of Bath. Dr Khanbareh's main research interests are in materials design, modelling, fabrication and application of piezo- and pyroelectrics in sensing and energy harvesting. Heterogeneous polymer-ceramic composites, offering a wide range of compositional and microstructural design flexibility, are the target of her current research. Dr Khanbareh has authored 21 peer-reviewed journal papers and 10 conference papers. She has been a member of IOM3 SMART MATERIALS & SYSTEMS COMMITTEE (SMASC), Institute of Electrical and Electronics Engineers (IEEE) Ferroelectrics as well as Royal Society of Chemistry.

Vitaly Yuryevich Topolov was born in Rostov-on-Don, Russia (former USSR) on November 8th, 1961. He earned the qualification Physicist. Educator (honours degree) in 1984 along with the degrees Candidate of Sciences (Physics and Mathematics) and Doctor of Sciences (Physics and Mathematics) in 1987 and 2000, respectively, all from the Rostov State University, Russia. Since 2000, he has been a Professor of the same Department. Since December 2006, after reforming the Rostov State University, he is a Professor of the Department of Physics at the Southern Federal University (Rostov-on-Don, Russia). Dr. V. Yu. Topolov was also a visiting scientist at the Moscow State University, Russia (former USSR, 1989), University of Saarland, Germany (19941995), Aachen University of Technology RWTH Aachen, Germany (1998), Karlsruhe Research Center, Germany (2002 and 20032004), University of Bath, UK (2006, 2007, 2012, 2013, 2014, 2015, 2016, 2017, and 2018), and University of Rome Tor Vergata, Italy (2008). His research interests include heterogeneous ferroelectrics, smart materials, domain and heterophase structures, as well as electromechanical effects in ferroelectrics and related materials. He earned the special award from the International Science Foundation (1993) and the Soros Associate Professor title and awards from the International Soros Science-Educational Program and the Open Society Institute (1997, 1998, 2000, and 2001). He is an author of six monographs published at Springer (London, UK, 2009; Berlin, Heidelberg, Germany, 2012; Berlin, Heidelberg, Germany, 2014; Cham, Switzerland, 2016 and 2018), two edited monographs published at Springer (Cham, Heidelberg, New York, Switzerland, Germany, USA, 2014 and 2016), one edited monograph published at Nova Science Publishers (New York, USA, 2016), five chapters in monographs published at Nova Science Publishers (New York, USA, 20102013), and over 450 scientific papers, reviews, conference proceedings, and abstracts. Dr. V. Yu. Topolov has been included in the list of Active Russian Scientists. Honorary co-worker of Higher Professional Education of the Russian Federation (Ministry of Education and Science of the Russian Federation, Moscow, Russia, 2009).

Christopher Rhys Bowen earned a BSc in Materials Science at the University of Bath, UK in 1990 and DPhil in ceramics in the Department of Materials, University of Oxford, UK in 1993. In 19931994, he worked at the Technical University of Hamburg-Harburg, Germany. From 1994 to 1996, he was at the School of Materials, University of Leeds, UK and from 1996 to 1998, he was a Senior Scientist at DERA, Functional Materials Group, UK. He joined the University of Bath in 1998 and is now a Professor at the same University. The research interests of Prof. C. R. Bowen are cfunctional ceramics, including ferroelectric ceramics and composites for modern sensors and actuators.

Inhalt

Preface

1. Piezo-active Composites: Classification and Effective Physical Properties

   1.1. Piezo-active Composites as Modern Active Dielectrics

   1.2. Criteria of Classifications of Composites

   1.3. Microgeometry and Connectivity

   1.4. Effective Physical Properties of Piezo-active Composites 1.4.1. Piezoelectric Medium and Its Characteristics

   1.4.2. Methods for Evaluation of Effective Properties

   1.4.3. Electromechanical Coupling Factors and Figures of Merit

   1.4.4. Effects of Addition, Combination and Generation of Properties in Composites Based on Ferroelectrics

   1.5. Conclusion

   1.6. References

   2. Aspects of Composite Manufacturing

   2.1. Methods for Manufacturing

   2.2. Role of Ceramic and Polymer Components

   2.3. Role of Electric Poling

   2.4. Dielectrophoresis, Its Characteristics and Advantages

   2.4.1. Effect of Dielectrophoresis Structuring on Electrical Displacement

   2.4.2. Effect of Dielectrophoresis Structuring on Electromechanical Strain

   2.4.3. Reproducible Composite Patterns and Related Microgeometric Features

   2.5. In Situ Structuring and Poling

   2.6. Conclusion

   2.7. References

2. Experimental Studies on Effective Properties and Related Parameters of Piezo-particulate Composites

   3.1. Microgeometry of Piezo-particulate Composites

   3.2. Ferroelectric Behaviour and Related Parameters

   3.3. Pyroelectric Properties

   3.4. Dielectric Properties

   3.5. Enhancing Piezoelectric Sensitivity

   3.6. Relations Between Piezoelectric Sensitivity and Anisotropy

   3.7. Conclusion 3.8. References

3. Modelling of the Composite Structure Formation During Dielectrophoresis

   4.1. Dielectrophoretic Force

   4.2. Viscous Drag

   4.3. Examples of Modelling

   4.4. Interaction Between Ceramic Particles and Their Influence on the Composite Structure 4.5. Conclusion

   4.6. References

4. Prediction of Effective Properties of Composites Based on Ferroelectric Ceramics

   5.1. 03 Connectivity Patterns and Properties of Composites

   5.2. 13 Connectivity Patterns and Properties of Composites

   5.3. Piezoelectric Properties and Their Anisotropy

   <5.4. Electromechanical Coupling

   5.5. Figures of Merit

   5.6. Improving Piezoelectric Sensitivity

   5.7. References

5. From Microgeometry to Improved Properties of Piezo-particulate Composites

   References

   Appendix A. List of Abbreviations Appendix B. About the Authors

   Index