| 激光辐照Ba0.5Sr1.5Na0.6K0.4Nb5O15压电陶瓷研究 |
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| 引用本文： | 杜新宇,季凌飞,蒋毅坚. 激光辐照Ba0.5Sr1.5Na0.6K0.4Nb5O15压电陶瓷研究[J]. 光电子．激光, 2009, 20(2): 193-195 |
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| 作者姓名： | 杜新宇 季凌飞 蒋毅坚 |
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| 作者单位： | 北京工业大学激光工程研究院,北京,100022 |
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| 基金项目： | 国家自然科学基金，北京市自然科学基金，北京市属市管高校人才强教计划，北京市科技新星计划 |
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| 摘 要： | 采用CO2激光辐照方法,Ba0.5Sr1.5Na0.6K0.4Nb5O15(BSKNN)陶瓷压电性能得到显著提高。其最佳辐照工艺参数为:辐照功率密度Pmax=764.33 W/cm2,辐照时间t=90 s。与未辐照样品相比,激光辐照后BSKNN陶瓷压电常数有显著提高,d15从61.6 pC/N提高到了120.0 pC/N。采用X射线衍射和扫描电镜,分析了激光辐照BSKNN陶瓷的物相、显微结构和性能改变的机理。
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| 关 键 词： | 激光辐照 无铅压电陶瓷 压电常数 |
Investigation of laser irradiation on Ba0.5 Sr1.5 Na0.6 K0.4Nb5O15 piezoelectric ceramics |
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| DU Xin-yu,JI Ling-fei,JIANG Yi-jian. Investigation of laser irradiation on Ba0.5 Sr1.5 Na0.6 K0.4Nb5O15 piezoelectric ceramics[J]. Journal of Optoelectronics·laser, 2009, 20(2): 193-195 |
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| Authors: | DU Xin-yu JI Ling-fei JIANG Yi-jian |
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| Affiliation: | Institute of Laser Engineering;Beijing University of Technology;Beijing 100022;China |
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| Abstract: | The tungsten bronze Ba0.5Sr1.5Na0.6K0.4Nb5O15(BSKNN) ceramics with significantly enhanced piezoelectric constants d15,from 61.6 pC/N to 120.0 pC/N are prepared by CO2 laser irradiation.The optimal process parameters are as follows:irradiation power density Pmax=764.33 W/cm2 and irradiation time t=90 s.The intrinsic reason of the enhancement of the piezoelectric properties is studied by SEM and XRD. |
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| Keywords: | laser irradiation lead-free piezoelectric ceramics piezoelectric constant |
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