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Invited Lecture

Magnetoelectric Composites for Energy Harvesting

Wednesday (07.06.2017)
18:20 - 19:00 Förde II + III
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Line-Up:
12:20 Invited Lecture Similarities and differences between magnetic hysteresis and hysteresis in phase transformations 0 Richard James
13:00 Invited Lecture Discovery and Design of Multifunctional Materials using Combinatorial and High-Throughput Experimentation 1 Prof. Dr. Alfred Ludwig
15:10 Invited Lecture Tuning Mechanical Properties of Spider Cuticle by its Composition and by Structural Gradients 0 Dr. Yael Politi
15:50 Invited Lecture Surfaces and Gels for controlling Calcium Phosphate Deposition 0 Prof. Dr. Andreas Taubert
17:40 Invited Lecture Probing the Structure and Dynamic Behaviors of Ferroelectrics by Electron Microscopy with Atomic Resolution in Real Time 0 Prof. Xiaoqing Pan
18:20 Invited Lecture Magnetoelectric Composites for Energy Harvesting 1 Robert E. Hord, Jr. Professor Shashank Priya
19:40 Invited Lecture Declamping in Lead Magnesium Niobate – Lead Titanate Films 1 Prof. Susan Trolier-McKinstry
20:20 Invited Lecture Integrated Magnetics and Multiferroics for Compact and Power Efficient Sensing, Power, RF, Microwave and mm-Wave Electronics 0 Prof. Nian X. Sun
21:00 Invited Lecture From Maxwell’s displacement current to nanogenerator driven self-powered systems and blue energy 0 Prof. Zhong Lin Wang
21:40 Invited Lecture Magnetoelectric Composites: from Sensors to Sensor Systems 0 Prof. Dr.-Ing. Gerhard Schmidt
22:20 Invited Lecture Metal–insulator transition in vanadium oxides films and its applications 1 Dr. Keisuke Shibuya
00:20 Invited Lecture In operando photoemission spectroscopy of PMN-PT interfaces 0 Prof. Dr. Kai Rossnagel
08:30 Invited Lecture Titanium-Tantalum High Temperature Shape Memory Spring Actuators 1 Prof. Dr. Gunther Eggeler
09:10 Invited Lecture Vortex-antivortex topological structures in multiferroic tunnel junctions 1 Dr. Ana Sanchez
09:50 Invited Lecture Artificial Ferroic Systems 1 Prof. Laura Heyderman
17:40 Invited Lecture Biomimicry at the molecular level: Molecularly imprinted polymers as synthetic antibody mimics 0 Karsten Haupt
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Novel material properties open the possibility of developing new components and systems. These new components and systems require sustainable power to operate. This synergy between the materials – energy – smart systems has provided the new paradigm for innovation driving the emergence of efficient and high performance platforms. One example platform being the self-powered structural health monitoring and automation control nodes. The vast reduction in the size and power consumption of sensors and CMOS circuitry has opened the opportunity to develop on-board power sources that can replace or extend the life of the batteries. In some applications such as sensors for structural health monitoring in remote locations, geographically inaccessible temperature or humidity sensors, the battery charging or replacement operations can be tedious and expensive. Logically, the emphasis in such cases has been on developing the on-site generators that can transform any available form of energy at the location into electrical energy. Generator design is platform dependent and requires considerable integration efforts. For example – in the case of vibrations, various forms of piezoelectric transducer structures have been fabricated to capture the mechanical energy with high efficiency. At micro-to-nanoscale, the design of transducer becomes challenging as the size reduction is accompanied by enhancement in the resonance frequency. We will review the solution to the problem of low frequency resonant transducer structures and demonstrate novel magnetoelectric harvesters that can capture mechanical energy and magnetic energy at the same time. The dual-phase harvester consisting of a magnetostrictive/ piezoelectric/ magnetostrictive (M/P/M) laminate structure utilizing two mechanisms simultaneously: 1. magnetoelectric (ME) effect, where external magnetic field H can excite longitudinal strain through magnetostricitve phase and transfer to piezoelectric phase; 2. Piezoelectric effect, where induced mechanical vibration can create strain and generate charge. The presentation will cover recent advances made in synthesis of magnetoelectric laminate composites through aerosol deposition and laser sintering. Interface design through controlled laser annealing has opened the opportunity to achieve high coupling factors responsible for high power density under dual field excitation. The authors acknowledge the financial support provided through Office of Naval Research (S.P.) and National Science Foundation (D.M.).

Shashank Priya*, Deepam

Maurya, Haribabu Palneedi,1

and Jungho Ryu2

Bio-inspired Materials and Devices

Laboratory (BMDL), Center for Energy Harvesting Materials and Systems (CEHMS),

Virginia Tech, Blacksburg, Virginia 24061, USA

1Department

of Materials Science and Engineering and Graduate

School of EEWS, Korea Advanced Institute of

Science and Technology (KAIST), Daejeon 305-701, Korea

2Functional Ceramics Group and §Materials

Modeling and Characterization Department, Korea Institute of Materials Science

(KIMS), Changwon 641-831, Korea

 

 

 

 

 

 

 

*spriya@vt.edu

 

 

 

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