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In the directional annealing process, directional columnar crystal growth is a process of columnar grain boundary migration to the front of the initial grain. The grain grew into columnar crystal, columnar crystal touch each other so that the grain boundary between the columnar crystals into straight grain boundary and stop motion. [ ·¢×ÔСľ³æ¿Í»§¶Ë ] |
3Â¥2014-07-14 13:13:50
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During directional annealing,the process of columnar crystal directional growth is a grain boundary migration to the initial grain front .After growing into columnar crystal,grain boundaries between the columnar crystals contacted with each other ,the grain boundaries become straight ,and the columnar crystals stoped migrating. ¾ßÌåµÄ´Ê»ãÔٺ˶Ôһϣ¡ |

2Â¥2014-07-14 11:47:47













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