| Effects of Na/K ratio on the phase structure and electrical properties of NaxK1−xNbO3 lead-free piezoelectric ceramics |
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| 作者单位： | School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| 基金项目： | supported by the National Natural Science Foundation of China (No. 50842028); the National Basic Research Priorities Program of China (No. 2007CB613301) |
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| 摘 要： | ![]()
Lead-free piezoelectric NaxK1-xNbO3(x = 0.3-0.8)(NKN) ceramics were fabricated by normal sintering at 1060°C for 2 h.Microstructures and electrical properties of the ceramics were investigated with a special emphasis on the influence of Na content.The grain size of the produced dense ceramic was decreased by increasing Na content.A discontinuous change in the space distance was found at the composition close to Na0.7K0.3NbO3 ceramic, which indicates the presence of a transitional composition between two dif...
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| 关 键 词： | 无铅压电陶瓷 相结构 电性能 Na 机电耦合系数 陶瓷烧结 晶粒尺寸 致密陶瓷 |
| 收稿时间： | 2007-11-30 |
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