Please use this identifier to cite or link to this item:
|Title:||Properties of Mg-doped Nd-Ba-Cu-O generic seed crystals for the top seeded melt growth of (RE)-Ba-Cu-O bulk superconductors|
Hari Babu, N
|Keywords:||Single grain;Bulk Superconductors|
|Citation:||Journal of Physics: Conference Series, 2006, 43 (1), pp. 446 - 449|
|Abstract:||We have recently developed a new generic seed crystal that has been used successfully to fabricate any oriented, single grain (RE)-Ba-Cu-O bulk superconductor by a cold seeding technique. In this paper we report the chemical, structural and microstructural properties of these seed crystals, including the variation of melting point, crystallographic parameters and volume fraction of Mg-rich inclusions in the Nd1 + xBa 2-x(Cu1-yMgy)3Oz matrix as a function of externally added MgO content. The influence of Mg-doping on the superconducting transition temperatures of YBCO grains fabricated using these seeds is investigated. Finally, an optimum MgO content of the generic seed that effectively controls the orientation of the seeded grain without compromising its superconducting properties is suggested from the many seed crystals fabricated with a wide range of Mg-rich addition.|
|Appears in Collections:||Brunel Centre for Advanced Solidification Technology (BCAST)|
Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.