Pyroelectric power generation with ferroelectrics (1-x)PMN-xPT

作者：Kim Juyoung; Yamanaka Satoru; Nakajima Akira; Katou Takanori; Kim Yoonho^*; Fukuda Tatsuo; Yoshii Kenji; Nishihata Yasuo; Baba Masaaki; Takeda Masatoshi; Yamada Noboru; Nakayama Tadachika; Niihara Koichi; Tanaka Hirohisa

来源：Ferroelectrics, 2017, 512(1): 92-99.

DOI：10.1080/00150193.2017.1349991

• Waste heat recovery
• temperature variation
• pyroelectric
• electro-thermodynamic cycle
• generating mechanism

A novel electrothermodynamic cycle based on temporal temperature variations (dT/dt); the pyroelectric effect was investigated for its potential role in the use of waste heat as renewable energy. Here, we present improved generating performance with relaxer ferroelectric ceramics ((1-x)Pb(Mg2/3Nb1/3)O-3-xPbTiO(3) (PMN-xPT)), which are well known for their strong dielectric and pyroelectric properties near the morphotropic phase boundary. The theoretical potential was evaluated using hysteresis loops, and the generating properties were analyzed in the laboratory using an engine dynamometer. The experiments yielded a value of 0.48mW/cm(3), which is 3times larger than that obtained previously, because of the high polarization properties.

• 出版日期2017