Paper Title:
Growth Condition and Ferroelectric Property of Mn-Doped Na0.5K0.5NbO3 Crystal
| Periodical | Key Engineering Materials (Volume 388) |
|---|---|
| Main Theme | Electroceramics in Japan XI |
| Edited by | Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki |
| Pages | 213-216 |
| DOI | 10.4028/www.scientific.net/KEM.388.213 |
| Citation | Yumi Inagaki et al., 2008, Key Engineering Materials, 388, 213 |
| Online since | September, 2008 |
| Authors | Yumi Inagaki, Kenichi Kakimoto, Hitoshi Ohsato |
| Keywords | Alkali Niobate, KF-NaF Eutectic Flux, Lead-Free Piezoelectric Crystal, P-E Hysteresis Loop |
| Price | US$ 28,- |
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Abstract
Mn-doped Na0.5K0.5NbO3 (NKN) crystals have been grown by self-flux method under several heat-treatment conditions. The cooling rate affected the quality of Mn-doped NKN crystals significantly. When the cooling rate was 0.5 oC/min at temperatures ranging from 1050 to 950 oC, the synthesized Mn-doped NKN crystal exhibited a single nucleation growth, compared with multinucleation growth when the cooling rate was 0.25 oC/min at temperatures ranging from 1050 to 950 oC. The frequency dependence on the ferroelectric P-E hysteresis loop of the Mn-doped NKN crystal was not observed at measurement frequency of 0.1 – 25 Hz. The annealed 0.5 mol% Mn-doped NKN crystal exhibited excellent P-E hysteresis loop with Pr of 45.0 μC/cm2 and Ec of 7.2 kV/cm.
