| 凝固界面前沿颗粒行为的研究进展 |
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| 引用本文： | 孙秋霞,钟云波,任忠鸣,邓康,徐匡迪. 凝固界面前沿颗粒行为的研究进展[J]. 材料导报, 2003, 17(9): 9-12 |
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| 作者姓名： | 孙秋霞 钟云波 任忠鸣 邓康 徐匡迪 |
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| 作者单位： | 上海大学上海市钢铁冶金重点实验室,上海,200072 |
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| 基金项目： | 上海市科委资助项目,上海市教委"曙光计划",01QE14020,02SG42,, |
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| 摘 要： | 对凝固界面前沿颗粒被推斥或被吞没行为的热力学、动力学判据进行了综合评述,探讨了影响颗粒行为的动力学参数,认为从动力学角度而言,颗粒行为主要取决于颗柱所受相互对立的两种类型力的平衡关系,进而介绍了利用外场力控制凝固界面颗粒行为设想的可行性。
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| 关 键 词： | 凝固界面 热力学 动力学 复合材料 前沿颗粒 |
Advances in Research on Particle's Behavior in Front of Solidifying Interface |
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| SUN Qiuxia ZHONG Yunbo REN Zhongming DENG Kang XU Kuangdi. Advances in Research on Particle's Behavior in Front of Solidifying Interface[J]. Materials Review, 2003, 17(9): 9-12 |
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| Authors: | SUN Qiuxia ZHONG Yunbo REN Zhongming DENG Kang XU Kuangdi |
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| Abstract: | This paper reviews thermodynamic and kinetic criteria for pushing/engulfment transition of particle in front of solidification interface,and the kinetic variables affecting the behavior of the particle are summarized. It is concluded that,according to the kinetic model,the particle's behavior mainly depends on the balance of two kinds of forces acting on it. The possibility of controlling the particle's behavior in front of the solidification interface by applying foreign force is also discussed. |
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| Keywords: | particle's behavior solidifying interface foreign force |
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