Piezoelectric properties of Li_2O excess (Na_<0.4875>K_<0.4625>Li_<0.05>)(Nb_<0.95>Ta_<0.5>)O_3 ceramics by conventional sintering method
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概要
- 論文の詳細を見る
Lead-free piezoelectric ceramics, (Na0.4875K0.4625Li0.05)(Nb0.95Ta0.05)O3 systems, were developed using the conventional sintering process. The grain growth behavior and piezoelectric properties of the ceramics were investigated. Their sintering temperature was lowered by adding 1 mol% of Li2O as a sintering aid. When the sample was sintered at 1050°C for 4 h with a composition of 1 mol% of excess Li2O (Na0.4875K0.4625Li0.05)(Nb0.95Ta0.05)O3, the electro-mechanical coupling factor (kP) and the piezoelectric coefficient (d33) were found to reach the highest values of 0.42 and 244 pC/N, respectively.
- 公益社団法人 日本セラミックス協会の論文
- 2009-05-01
著者
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Kim Min
Energy-conversion Device Research Center Korea Electrotechnology Research Institute
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Kim In
Energy-conversion Device Research Center Korea Electrotechnology Research Institute
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Jeong Soon
Energy-conversion Device Research Center Korea Electrotechnology Research Institute
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SONG Jae
Energy-Conversion Device Research Center, Korea Electrotechnology Research Institute
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Song Jae
Energy-conversion Device Research Center Korea Electrotechnology Research Institute