| CTAS和CNAS晶体的声表面波特性研究 |
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| 引用本文： | 杨红旺,卢贵武,黄文奇,杨虹,苏东东,王坤.CTAS和CNAS晶体的声表面波特性研究[J].人工晶体学报,2010,39(2):384-386. |
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| 作者姓名： | 杨红旺 卢贵武 黄文奇 杨虹 苏东东 王坤 |
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| 作者单位： | 中国石油大学,北京,数理系,北京,102249;北京信息科技大学理学院,北京,100081 |
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| 基金项目： | 教育部科学技术研究重点项目，中石油风险基金 |
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| 摘 要： | 本文计算了Ca3TaAl3Si2O14(CTAS)和Ca3NbAl3SiO14(CNAS)压电晶体的X,Y和Z切型的声表面波速度、机电耦合系数.计算结果表明:CTAS和CNAS机电耦合系数最高可达1.04;,是石英晶体(最大0.3;)三倍多,而CTAS晶体的声表面波速度(最小值约为3070 m/s)比石英(最小值为3200 m/s)小4.0;.给出声表面波特性比较好的切型,为CTAS和CNAS的声表面波应用提供了理论依据.
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| 关 键 词： | CTAS CNAS 晶体 声表面波速度 机电耦合系数 |
Study on the Surface Acoustic Wave Properties of CTAS and CNAS Crystals |
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| YANG Hong-wang,LU Gui-wu,HUANG Wen-qi,YANG Hong,SU Dong-dong,WANG Kun.Study on the Surface Acoustic Wave Properties of CTAS and CNAS Crystals[J].Journal of Synthetic Crystals,2010,39(2):384-386. |
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| Authors: | YANG Hong-wang LU Gui-wu HUANG Wen-qi YANG Hong SU Dong-dong WANG Kun |
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| Institution: | YANG Hong-wang1,LU Gui-wu1,HUANG Wen-qi2,YANG Hong2,SU Dong-dong1,WANG Kun1(1.Department of Mathematics , Physics,China University of Petroleum(Beijing),Beijing 102249,China,2.School of Science,Beijing Information Science , Technology University,Beijing 100081,China) |
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| Abstract: | The phase velocity and electro-mechanical coupling factor of X,Y and Z cuts of Ca3TaAl3Si2O14(CTAS) and Ca3NbAl3SiO14(CNAS) crystals were calculated in this paper.The results show that the maximum electro-mechanical coupling coefficient of CTAS and CNAS is about 1.04%,which is about three times of that of quartz(maximum 0.3%).For CTAS crystal,the surface acoustic wave(SAW) velocity has an minimum value of 3070 m/s,which is smaller 4.0% than that of quartz(maximum 3200 m/s).We gained the cut types with good ... |
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| Keywords: | CTAS CNAS |
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