教師資料查詢 | 類別: 期刊論文 | 教師: 陳偉正 CHAN, WAI-CHING (瀏覽個人網頁)

標題:Grain size effect on magnetic levitation of YBCO superconducting samples
學年86
學期1
出版(發表)日期1997/08/01
作品名稱Grain size effect on magnetic levitation of YBCO superconducting samples
作品名稱(其他語言)
著者Chan, W. C.; Wang, G.; Lee, J. J.
單位淡江大學物理學系
出版者Amsterdam: Elsevier BV * North-Holland
著錄名稱、卷期、頁數Physica C: Superconductivity and its Applications 282-287(3), pp.1455-1456
摘要In our previous works, the magnetic levitation force acting on a superconducting single crystal was devided into two parts. The first part, for magnetic field less than the first critical field( Hc1) of the superconducting sample, is explained by using the Meissner effect and is reversible. The second part, for magnetic field larger than He1, is explained by using the Bean's critical state model and is irreversible. For grain size larger than the penetration depth (λ) of the superconducting material, one would expect that larger grain will give larger irreversible part in magnetic levitation force measurement. Experiments were done on epoxy-YBCO samples of ratio 1.3 in mass with four different grain sizes. Results come out as expected. We also have fitted the experimental curves for different grain size with our previous model calculations. Theoretical results agree with experimental measurements quite well.
關鍵字
語言英文
ISSN0921-4534
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別荷蘭
公開徵稿
出版型式紙本
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