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4 inch langasite crystals grown along SAW-cut orientations

机译:沿SAW切割方向生长的4英寸紫水晶

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摘要

Langasite crystal is an important substrate material for intermediate frequency surface acoustic (IF-SAW) wave filters and high temperature sensors, due to their high piezoelectric constants, electromechanical coupling factor and no phase transformation up to the melting point. In this work, 3 and 4 in. circular shaped langasite crystals along SAW-cut orientations (0°, 22°, 90°) and (0°, 138.5°, 26.6°) were grown successfully. Key parameters to grow high quality crystals are discussed. Rocking curve and frequency tests show a high homogeneity of these crystals. Homogeneous langasite crystals grown along a SAW-cut orientation with controlled shape are of enormous commercial value.
机译:兰格石晶体是中频表面声波(IF-SAW)滤波器和高温传感器的重要衬底材料,因为它们的高压电常数,机电耦合系数以及直至熔点都没有相变。在这项工作中,成功地生长了沿SAW切割方向(0°,22°,90°)和(0°,138.5°,26.6°)的3英寸和4英寸圆形菱形硅酸盐晶体。讨论了生长高质量晶体的关键参数。摇摆曲线和频率测试表明这些晶体具有很高的同质性。沿SAW切割方向生长且形状可控的均质硅绿石晶体具有巨大的商业价值。

著录项

  • 来源
    《Journal of Crystal Growth》 |2014年第1期|164-168|共5页
  • 作者单位

    Chinese Academy of Sciences, Shanghai Institute of Ceramics, 588 Heshuo Road, Jiading, Shanghai 201800, China Department of Electronics and Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, China;

    Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800, China;

    Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800, China;

    Department of Electronics and Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, China;

    Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A1. Langasite; A2. Crystal growth; A3. SAW; B1. High temperature; B2. Sensors;

    机译:A1。菱铁矿;A2。晶体生长;A3。锯;B1。高温;B2。感测器;

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