Structural behaviors of lead zirconate titanate-based ferroelectric ceramics during pyroelectric-power generation cycles
Abstract
Energy harvesting from waste heat can improve energy efficiency in society. This research investigated the structural behaviors of lead zirconate titanate–based ferroelectric ceramics using operando neutron diffraction measurements under the conditions of two energy-harvesting cycles that involve consideration of the temperature changes of automobile exhaust gas for achieving good harvesting efficiencies. Input and output electrical energies and neutron diffraction data were simultaneously collected. The obtained time-resolved neutron diffraction intensity data indicate that the applied electric fields and temperature changes induced 90° domain rotation and lattice strain. These structural changes and their variations depending on cycle conditions, such as temperature changes, applied electric fields, and circuit switching, provide insight into the origins of the differences in the behaviors of electrical input/output energies in the cycles.
Article Details
Journal Info
Journal of Applied Physics
American Institute of Physics
Authors (14)
Takuro Kawasaki
Tatsuo Fukuda
Materials Sciences Research Center, Japan Atomic Energy Agency 2 , 1-1-1 Kouto, Sayo, Hyogo 679-5148,
Satoru Yamanaka
Daihatsu Motor Co., Ltd. 3 , 1-1 Daihatsu, Ikeda, Osaka 563-0044,
Ichiro Murayama
Daihatsu Motor Co., Ltd. 3 , 1-1 Daihatsu, Ikeda, Osaka 563-0044,
Takanori Katou
Daihatsu Motor Co., Ltd. 3 , 1-1 Daihatsu, Ikeda, Osaka 563-0044,
Masaaki Baba
Nagaoka University of Technology 4 Department of Mechanical Engineering, , 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188,
Hideki Hashimoto
Department of Applied Chemistry, School of Advanced Engineering, Kogakuin University, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
Stefanus Harjo
Kazuya Aizawa
J-PARC Center, Japan Atomic Energy Agency 1 , 2-4 Shirakata, Tokai, Naka, Ibaraki 319-1195,
Hirohisa Tanaka
1 Gakuen-Uegahara 6 School of Engineering, , Sanda, Hyogo 669-1330,
Masatoshi Takeda
Nagaoka University of Technology 4 Department of Mechanical Engineering, , 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188,
Tohru Sekino
Tadachika Nakayama
Department of Science of Technology Innovation, Nagaoka University of Technology 8 , 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188,
Yoonho Kim
Daihatsu Motor Co., Ltd. 3 , 1-1 Daihatsu, Ikeda, Osaka 563-0044,