複合超電導線材の残留熱歪解析

• 村瀬 暁

  岡山大学工学部電気電子工学科

• 月井 智之

  東北大学大学院工学研究科

• 若狭 強志

  東北大学大学院工学研究科

• 島本 進

  東北大学大学院工学研究科

書誌事項

タイトル別名

• Analysis of Thermally Induced Strains for Composite Superconductors
• フクゴウ チョウデンドウセンザイ ノ ザンリュウ ネツ ワイ カイセキ

抄録

Nb₃Sn compound superconducting wires and Ag sheathed Bi system high T_c wires used for high-field magnet applications are composite superconductors which consist of a superconductor, a stabilizer, a matrix, and a reinforcement. The composite superconductor is subjected to temperature difference in around 1000 K between high temperature where the superconducting layer is formed and cryogenic temperature where the conductor is operated. As each component material which construct the composite superconductor has different thermal expansion coefficient, it is subjected to thermally-induced residual strain. To clarify those strains behavior, we analyzed elastically 3-D strains in the composite superconductors, radial and tangential directions in the cross-sectional plane added to longitudinal direction using a multiple cylindrical model.<BR>Strains in radial and tangential directions varied with combination of component materials having large and small thermal expansion coefficients. If the superconducting layer was placed on the middle or outer cylindrical layer, the strains in the radial tangential directions were to be affected by magnitude of the thermal expansion coefficient of the neighboring component.

収録刊行物

• 日本金属学会誌

  日本金属学会誌 66 (4), 236-241, 2002

  公益社団法人 日本金属学会

キーワード

• composite superconductors
• residual strain
• thermally induced strain
• analysis

詳細情報

• CRID: 1390282681468731264
• NII論文ID: 10008832347
• NII書誌ID: AN00187860
• DOI: 10.2320/jinstmet1952.66.4_236
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL書誌ID: 6151316
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6151316
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet1952/66/4/66_4_236/_pdf
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