酸化物超伝導体の合成と特性　　Ｎｄ系超電導体のプロセス研究の動向

• 塩原 融

  (財)国際超電導産業技術研究センター

書誌事項

タイトル別名

• Trend of Processing Research of Nd-system Superconductive Oxides.
• Ndケイ チョウデンドウタイ ノ プロセス ケンキュウ ノ ドウコウ

抄録

Single crystal growth and solidification processing of Nd- 123 superconductive oxides are reviewed in comparison with Y-123 oxide. Since Nd-123 crystal forms a solid solution due to Nd/Ba substitution, this crystal is considered to be nonstoichiometric while Y-123 is a stoichiometric compound at least for its cation constituents. Crystal growth processing of nonstoichiometric compounds (Nd-123) with homogeneous composition distribution should be different from that of stoichiometric (Y-123) compounds, because the former case is one degree of freedom in the Gibbs phase rule higher than the latter case. In this paper, difference in crystal growth mechanisms between Nd-123 and Y-123 is discussed, taking into consideration of equilibrium phase diagrams, kinetics of the 123 phase crystal growth.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 45 (2), 109-113, 1998

  一般社団法人 粉体粉末冶金協会

キーワード

• superconductive oxides
• RE(Nd or Y)Ba<SUB>2</SUB>Cu<SUB>3</SUB>O<SUB>6+δ</SUB>
• nonstoichiometric compounds
• single crystal growth
• peritectic solidification

詳細情報

• CRID: 1390001206307627264
• NII論文ID: 10002014995
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.45.109
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 4413732
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4413732
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可