无机材料学报

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用于高温光学实时观察的磁场装置

金蔚青; 袁晖; 潘志雷; 刘照华; 梁歆桉   

  1. 中国科学院上海硅酸盐研究所; 上海 200050
  • 收稿日期:1998-04-08 修回日期:1998-05-05 出版日期:1999-02-20 网络出版日期:1999-02-20

Application of the Magnetic Field to High Temperature Optical in Situ Observation Technique

JIN Wei-Qing; YUAN Hui; PAN Zhi-Lei; LIU Zhao-Hua; LIANG Xin-An

  

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1998-04-08 Revised:1998-05-05 Published:1999-02-20 Online:1999-02-20

摘要: 最近在我们实验室里建立了一套加磁场高温光学实时观察装置.作为磁场发生器的电磁铁,在发热体中心最高可产生0.14T的侧向磁场.运用这套加磁场实时观察装置,能有效地阻抑KNbO3熔体内的重力对流,减少界面边界层厚度.

关键词: 磁场, 高温光学实时观察技术, 氧化物晶体生长

Abstract: A magnetic-field applied to high temperature optical in situ observation (M in situ observation) technique was established in
the authors’ laboratory. An electromagnet was used as a magnetic field generator. This magnet was designed to supply up to 0.14T transversely to the center
of the heater.
By using M in situ observation technique, the relative extent of boundary layer can be reduced and the buoyancy driven convection can also be damped.
The effect of the magnetic-field upon oxide crystal growth was verified tentatively.

Key words: magnetic field, high temperature optical in situ observation technique, oxide crystal growth

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