Growth of transparent SrB₄O₇ crystal fiber by the μ-PD method

• Machida Takaaki

  Graduate School of Sciences and Technology for Innovation, Yamaguchi University

• Inaba Sho

  Graduate School of Sciences and Technology for Innovation, Yamaguchi University

• Ueda Maki

  Graduate School of Sciences and Technology for Innovation, Yamaguchi University

• Asakawa Harutoshi

  Graduate School of Sciences and Technology for Innovation, Yamaguchi University

• Komatsu Ryuichi

  Graduate School of Sciences and Technology for Innovation, Yamaguchi University

抄録

  We grew transparent SrB₄O₇ (SBO) crystal fibers by the micro-pulling-down (μ-PD) method at pulling rates (V_P) of 0.01–0.40 mm/min. We observed the SBO crystals by optical microscopy. The SBO crystal fiber at V_P of 0.40 mm/min was cloudy due to the incorporation of voids. In contrast, transparent single-crystal fibers were obtained at V_P of less than 0.02 mm/min. This is the first time that transparent SBO crystal fibers have been grown with a length of several centimeters. These results demonstrate that it is crucial to grow SBO crystals at a low V_P to obtain transparent crystal fibers. In addition, we considered the generation mechanism of voids in the SBO crystals by using the relation between the growth rate of SBO crystals and the diffusion rate of voids.

収録刊行物

• Transactions of the Materials Research Society of Japan

  Transactions of the Materials Research Society of Japan 42 (3), 65-68, 2017

  一般社団法人 日本MRS

キーワード

• Strontium tetraborate
• Micro-pulling-down (μ-PD) method
• Crystal growth

詳細情報

• CRID: 1390282680489920640
• NII論文ID: 130006943321
• DOI: 10.14723/tmrsj.42.65
• ISSN: 21881650
• ISSN: 13823469
• Web Site: https://www.jstage.jst.go.jp/article/tmrsj/42/3/42_65/_pdf
• 本文言語コード: en
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