| 一次间距调整机理探讨 |
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| 引用本文： | 刘立新,安阁英,李庆春.一次间距调整机理探讨[J].材料科学与工艺,1988(4). |
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| 作者姓名： | 刘立新 安阁英 李庆春 |
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| 作者单位： | 哈尔滨工业大学,哈尔滨工业大学,哈尔滨工业大学 |
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| 摘 要： | 本文初步探讨了一次间距的调整机理,指出在胞晶及不发达枝晶生长时,“淹没”及“分枝”是一次间距的主要调整机理,对于发达枝晶生长,主要靠“分枝”机理调整。同时指出一次枝晶是在“生长—淹没—竞争再生长”的往复过程中生长的,竞争再生长的主要生长方式是“淹没—扰动分枝”
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| 关 键 词： | 胞技晶生长 一次间距 调整机理 |
A Research on Adjusting Mechanism of the Primary Arm Spacing |
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| Liu Lixin An Geying Li Qing Chun.A Research on Adjusting Mechanism of the Primary Arm Spacing[J].Materials Science and Technology,1988(4). |
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| Authors: | Liu Lixin An Geying Li Qing Chun |
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| Affiliation: | Harbin Institute of Technology |
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| Abstract: | The adjusting mechanism of the primary spacing is discussed in this paper. As the crystal grows as a cell or a developing dendrite, the "engulfing" and "branching" are the major adjusting mechanism. The primary dendrite spacing is mainly adjusted by "bran ching" under the developed dendritic growth condition. The primary arm grows in such a repetitive process as "growing-engulfing-competitive growing".The major way of competitive growth is the "engulfed-disturbance branching". |
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| Keywords: | cellular and dendritic growth primary arm spacing adjusting mechanism |
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