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22 March 2018 Characteristics of energy harvesting using BaTiO3/Cu laminates with changes in temperature
K. Mori, H. Takeuchi, F. Narita
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Proceedings Volume 10596, Behavior and Mechanics of Multifunctional Materials and Composites XII; 105961Z (2018) https://doi.org/10.1117/12.2296480
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States
Abstract
The energy harvesting characteristics of piezoelectric/copper (BaTiO3/Cu) laminates rising from sharp temperature changes were investigated both numerically and experimentally. First, a phase field simulation was performed to determine the temperature-dependent piezoelectric coefficient and permittivity values. Then, the output voltages of the BaTiO3/Cu laminates were calculated for variations from room temperature to either a cryogenic temperature (77 K) or a higher temperature (333 K) using a 3D finite element simulation with the properties calculated from the phase field simulation. Finally, the output voltages of the piezoelectric BaTiO3/Cu laminates were measured for the same temperature changes and were compared to the simulation results.
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K. Mori, H. Takeuchi, and F. Narita "Characteristics of energy harvesting using BaTiO3/Cu laminates with changes in temperature", Proc. SPIE 10596, Behavior and Mechanics of Multifunctional Materials and Composites XII, 105961Z (22 March 2018); https://doi.org/10.1117/12.2296480
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KEYWORDS
Ceramics
Energy harvesting
Pyroelectricity
Dielectrics
Finite element methods
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