Journal of Inorganic Materials

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Experimental and Theoretical Study on Velocity Field of Buoyancy Convection in the Melt

JIN Wei-Qing; JIANG Yuan-Fang+; SUN Xu-Bao+; PAN Zhi-Lei; LIU Zhao-Hua   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China; +Physics department; East China Normal University Shanghai 200062 China
  • Received:1997-09-23 Revised:1997-10-15 Published:1998-06-20 Online:1998-06-20

Abstract: A high temperature in situ observation method was newly developed to study the buoyancydriven convection in KNbO3 melt. A thin loop-like Pt wire heater (about 2.5mm in diameter)was employed to heat and suspend the KNbO3 melts. A thin plane film of the sample melt wasformed. The temperature and fluid velocity profiles in the melt were measured experimentally.The quantitative analysis for the velocity of the fluid flow was also made theoretically.

Key words: in situ observation methods, high temperature melt effect

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