Details

Autor(en) / Beteiligte

• Li, Lei
• Xu, Bo
• Tong, Wei-Ping
• Zhang, Hui
• Ban, Chun-Yan
• He, Li-Zi
• Zhao, Zhi-Hao
• Zuo, Yu-Bo
• Zhu, Qing-Feng
• Cui, Jian-Zhong

Titel

Directional Growth of Tin Crystals Controlled by Combined Solute Concentration Gradient Field and Static Magnetic Field

Ist Teil von

• Acta metallurgica sinica : English letters, 2015-06, Vol.28 (6), p.725-732

Ort / Verlag

Beijing: The Chinese Society for Metals

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.