...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Fast X-ray scattering measurements on high temperature levitated liquids
【24h】

Fast X-ray scattering measurements on high temperature levitated liquids

机译：对高温悬浮液体的快速X射线散射测量

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We describe a new high temperature environment based on aerodynamic levitation and CO2 laser heating designed for high energy X-ray diffraction at the ID11 beamline at ESRF. The use of two lasers simultaneously provides a homogeneous temperature and makes it possible to explore the supercooled state with a high degree of control (about 500 degrees C below the melting point in this work) and to work very close to T-g. The scattered beam is measured over a relatively wide Q-range of 0.5-19 angstrom(-1) with the ESRF Frelon 2D CDD camera. Using 1 -min measurements we obtained good quality structure factors at various temperatures in the liquid and supercooled state of CaAl2O4. We also performed time-resolved measurements using an acquisition time of 100 ms and we obtained good statistics even at large Q. The Al-O and Ca-O bond lengths and coordination numbers derived from the calculated pair distribution functions are in good agreement with our previous X-ray and neutron works.
机译：我们描述了一种基于空气悬浮和CO2激光加热的新型高温环境，该环境设计用于在ESRF的ID11光束线上进行高能X射线衍射。同时使用两个激光可以提供均匀的温度，并可以高度控制地探索过冷状态（在这项工作中，熔点大约比熔点低500摄氏度），并且可以非常接近T-g的温度工作。使用ESRF Frelon 2D CDD相机在0.5-19埃（-1）的相对较宽的Q范围内测量散射光束。使用1分钟的测量，我们在CaAl2O4的液态和过冷状态下的各种温度下均获得了良好的结构系数。我们还使用100 ms的采集时间进行了时间分辨的测量，即使在较大的Q值下也获得了良好的统计数据。从计算出的对分布函数得出的Al-O和Ca-O键长以及配位数与我们的以前的X射线和中子工作。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号