Effect of solid-liquid interface morphology on grain boundary segregation during colloidal polycrystallization

Sumeng Hu, Jun Nozawa, Suxia Guo, Haruhiko Koizumi, Kozo Fujiwara, Satoshi Uda

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The effect of the solid-liquid interface morphology on grain boundary (GB) segregation during colloidal polycrystallization was investigated by in situ optical observations.The time evolution of the impurity distribution in the liquid in the vicinity of solid-liquid interface was directly observed during crystal growth. Impurities were distributed homogeneously along the direction perpendicular to the growth orientation during the initial stage of the growth and were then gathered in the groove that formed at the solid-liquid interface as crystallization proceeded. GBs were exposed to the liquid at the bottom of the groove, and a high impurity concentration at the GB (CGB) was obtained when the area of the groove was large. The area of the groove changes depending on the crystallographic orientation of neighboring grains across GBs, which results in a difference in the interfacial energies.

本文言語English
ページ(範囲)2765-2770
ページ数6
ジャーナルCrystal Growth and Design
16
5
DOI
出版ステータスPublished - 2016 5 4

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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