Solidification Behavior and a Quasi-Ternary Phase Diagram of the YBCO/Ag System

• Maeda Junya

  Superconductivity Research Laboratory

• Shiohara Yuh

  Superconductivity Research Laboratory

Bibliographic Information

Other Title

• YBCO/Ag系の擬3元状態図と凝固挙動
• YBCO Agケイ ノ ギ3ゲン ジョウタイズ ト ギョウコ キョドウ

Abstract

It is necessary to understand the solidification behavior because the mechanical properties and the thermal conductivity of the YBCO/Ag superconducting current leads prepared by unidirectional solidification method are influenced by the silver particle dispersion. Solidification behavior in the YBCO/Ag superconductor is discussed with the Y₂Ba₁Cu₁O₅-Ba₃Cu₅O_x-Ag (211-035-Ag) quasi-ternary phase diagrams, which were constructed by the analyzes of the solute compositions in the melt. The obtained phase diagram indicates that the solidification of the YBCO/Ag system proceeds through the monotecto-peritectic reaction, expressed as 211+BaO-CuO-rich melt (L₁)→Y₁Ba₂Cu₃O_y(123)+Liquid metallic silver (L₂). The diffusion fields in the YBCO/Ag system were discussed with using this phase diagram.

Journal

• Journal of the Japan Institute of Metals and Materials

  Journal of the Japan Institute of Metals and Materials 63 (3), 397-405, 1999

  The Japan Institute of Metals and Materials

Keywords

• superconductor
• YBaCuO/Ag
• unidirectional solidification
• monotectial peritectic solidification
• phase diagram

Details

• CRID: 1390001206490764416
• NII Article ID: 10002549388
• NII Book ID: AN00187860
• DOI: 10.2320/jinstmet1952.63.3_397
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL BIB ID: 4692377
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4692377
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet1952/63/3/63_3_397/_pdf
• Data Source:
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  • CiNii Articles
• Abstract License Flag: Disallowed