| 磁场对KNbO3熔体中温度分布影响的实验研究 |
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| 引用本文： | 梁歆桉,金蔚青,潘志雷,刘照华.磁场对KNbO3熔体中温度分布影响的实验研究[J].无机材料学报,2000,15(1):159-162. |
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| 作者姓名： | 梁歆桉 金蔚青 潘志雷 刘照华 |
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| 作者单位： | 中国科学院上海硅酸盐研究所,上海200050 |
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| 摘 要： | 研究了磁场对ＫＮｂＯ３熔体中的温度分布的影响，利用加磁场的休仑微分干涉显微实时观察装置及一种近似的间接测量方法。对在不同磁场强度０、７０、１１７、１３５ｍＴ下，ＫＮｂＯ３Ｏ熔体中的径向温分布进行测量。
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| 关 键 词： | 磁场 KNbO3 温度分布 熔体 半导体晶体 |
| 收稿时间： | 1999-1-21 |
| 修稿时间： | : |
Experiments on Influence of Magnetic Field on Distribution of Temperature in KNbO3 Melt |
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| LIANG Xin-An,JIN Wei-Qing,PAN Zhi-Lei,LIU Zhao-Hua.Experiments on Influence of Magnetic Field on Distribution of Temperature in KNbO3 Melt[J].Journal of Inorganic Materials,2000,15(1):159-162. |
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| Authors: | LIANG Xin-An JIN Wei-Qing PAN Zhi-Lei LIU Zhao-Hua |
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| Affiliation: | ShanghaiInstituteofCeramics;ChineseAcademyofSciences;Shanghai200050;China |
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| Abstract: | The effect of magnetic field on temperature distribution in KNbO3 melt was experimental studied. By utilizing a special temperature measurement technique, the KNbO3 melt temperature distribution in a 2mm diameter platinum crucible was measured under 0, 70, 117, 135mT transverse magnetic field respectively. The results show that the temperature gradient along crucible radius decreases with magnetic intensity increasing, especially, the temperature gradient close to crucible-melt interface where the buoyancy-driven convection is the main convection form decreases greatly. It may implie that magnetic field can damp up the buoyancy-driven convection in KNbO3 melt. |
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| Keywords: | magnetic field KNbO3 damping buoyancy-driven flow distribution of temperature |
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