| Autor: |
Daisuke Tanaka, Chikako Moriyoshi, Shintaro Ueno, Hideto Kawashima, Yoshihiro Kuroiwa, Kouichi Nakashima, Yoshinori Fujikawa, Ichiro Fujii, Kenta Yamashita, Masahito Furukawa, Nobuhiro Kumada, Satoshi Wada |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT). 2013:000001-000004 |
| ISSN: |
2380-4491 |
| Popis: |
Barium titanate (BT) - potassium niobate (KN) nano-structured ceramics with an artificial morphotropic phase boundary (MPB) structure were prepared by a solvothermal method at temperatures below 230 °C. Various characterizations of the BT-KN nano-structured ceramics revealed that the BT/KN molar ratio was 1, the porosity was around 30 %, and the interface between BT particles and KN crystals was heteroepitaxial. The apparent piezoelectric constant d33* was 136 pC/N, which was three times larger than that of 0.5BT-0.5KN dense composite ceramics. The concept proposed in this study can be useful to create piezoelectric ceramics with artificial MPB regions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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