中文摘要：

一个新方法被介绍完成 Sn 晶体的方向性的生长。在 /liquid (Sn ) 散开联合的液体(Pb ) 的微观结构在各种各样的静态的磁场下面被调查。结果证明没有或与一个相对低的静态的磁场， -Sn 晶体主要揭示不规则的树枝状的形态学(0.3 ? T ) 。当磁场被增加到 0.5 时 ? T，近到生长的最后的阶段的 -Sn 树突开始给一些方向性的人物看。随到高水平的磁场的另外的增加(0.85 ? T ) ， -Sn 树突有一个提高的方向性的生长人物，而是树突表演某个偏转。当磁场被增加到 12 ? T，在夫妇的中心的 -Sn 树突的方向性的生长严重地被破坏。-Sn 晶体的方向性的生长和有静态的磁场的申请的 -Sn 晶体的偏转的机制尝试性地被讨论。

英文摘要：

A new method was introduced to achieve directional growth of Sn crystals. Microstructures in liquid （Pb）/ liquid （Sn） diffusion couples were investigated under various static magnetic fields. Results show that the β-Sn crystals mainly reveal an irregular dendritic morphology without or with a relatively low static magnetic field （〈0.3 T）. When the magnetic field is increased to 0.5 T, the β-Sn dendrites close to the final stage of growth begin to show some directional character. With a further increase in the magnetic field to a higher level （0.8-5 T）, the β-Sn dendrites have an enhanced directional growth character, but the dendrites show a certain deflection. As the magnetic field is increased to 12 T, the directional growth of the β-Sn dendrites in the center of the couple is severely destroyed. The mechanism of the directional growth of the β-Sn crystals and the deflection of the β-Sn crystals with the application of static magnetic field was tentatively discussed.