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Title: Studies of cracking behavior in melt-processed YBCO bulk superconductors
Authors: Haindl, S
Weber, HW
Sefciková, M
Zmorayová, K
Diko, P
Hari Babu, N
Cardwell, DA
Shlyk, L
Krabbes, G
Keywords: Bulk Superconductors;Magnetoscan Technique
Issue Date: 2006
Citation: Journal of Physics: Conference Series, 2006, 43 (1), pp. 429 - 433
Abstract: An important phenomenon in bulk superconductors fabricated by top-seeded-melt growth (TSMG) is the formation of cracks due to the inherent brittleness of the YBa2Cu3O7-δ (Y-123) phase matrix. These form during the fabrication of the superconducting monolith and play an important role in the limitation of current flow. However, cracks may also form during cooling cycles of the sample to liquid nitrogen temperatures. In this investigation, macrocracks along the c-direction, in particular were analyzed microscopically before and after cooling. In addition we attempt to resolve the c-axis macrocrack formation pattern using the magnetoscan technique.
ISSN: 1742-6588
Appears in Collections:Brunel Centre for Advanced Solidification Technology (BCAST)

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