【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”更多还原

【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".更多还原