کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1531281 | 995827 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of crystal plane on the welding quality of YBCO bulk superconductor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of crystal plane on the welding quality of YBCO bulk superconductor Influence of crystal plane on the welding quality of YBCO bulk superconductor](/preview/png/1531281.png)
چکیده انگلیسی
The microstructure of welds parallel to the {1Â 0Â 0} and the {1Â 1Â 0} crystal planes of the single-grain YBa2Cu3O7/Y2BaCuO5 (Y123/Y211) bulk superconductors welded by Ag foil has been studied. It is shown that a zone free of small Y211 particles is formed along the both sides of the welds. Formation of this zone is explained by higher Y content in the melt produced during heating and leaking out of the weld. The different morphology of the rest solidified liquid in the welds, which has a tendency to form films in the {1Â 0Â 0} welds and granules in the {1Â 1Â 0} welds, is associated with different surface energies of welded surfaces. Cracking suppression of the {1Â 1Â 0} welds was observed and is ascribed to higher fracture toughness for this plane. The quality of the weld is confirmed by the trapped field measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 151, Issue 1, 15 June 2008, Pages 107-110
Journal: Materials Science and Engineering: B - Volume 151, Issue 1, 15 June 2008, Pages 107-110
نویسندگان
M. Å efÄiková, P. Diko, B. Bozzo, X. Granados, X. Obradors,