(Tb,Yb)3Al5O12 garnet: Crystal-chemistry and fiber growth by micro-pulling-down technique

Valery I. Chani, Akira Yoshikawa, Hiroshi Machida, Tsuguo Fukuda

研究成果: Article査読

43 被引用数 (Scopus)

抄録

A process is reported for fiber crystal growth of (Tb,Yb)3Al5O12 from mixed Tb3Al5O12-Yb3Al5O12 melt using micro-pulling-down technique. A model which allow to predict segregation coefficients for different rare-earth cations in mixed garnet crystals is reported, its key feature being a selection of couple of the cations which do not fit to the equilibrium size of the dodecahedral site in equal degree. Such an approximation was found to be applicable for the Tb3Al5O12-Yb3Al5O12 system. Therefore the uniform and macro defect free crystals were successfully grown from melt of about Tb2.2Yb0.8Al5O12 composition with a pulling down rate of up to 2 mm/min.

本文言語English
ページ(範囲)53-60
ページ数8
ジャーナルMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
75
1
DOI
出版ステータスPublished - 2000 5月 15

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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