MgB2 THICK FILMS OBTAINED BY ELECTROPHORESIS TECHNIQUE: SYNTHESIS, STRUCTURAL AND SUPERCONDUCTIVE CHARACTERIZATION
|Valeria Dellaroca 2, Renato S. Gonnelli 2,4, Silvia Bodoardo 3, Nerino Penazzi 3, Gianluca Grenci 3, Chiara Portesi 5, Mauro Rajteri 5, Andrzej J. Morawski 1, Tomasz Lada 1|
1. Polish Academy of Sciences, High Pressure Research Center (UNIPRESS), Sokolowska 29/37, Warszawa 01-142, Poland
MgB2 is a material known for several years, but only recently discovered as superconductive at about 40 K. MgB2 has a simple crystal structure with alternation of boron and magnesium layers, both in hexagonal array. It has mechanical strength and durability higher than superconducting oxides, weak-link-free grain boundaries, high transport critical current density (Jc),coherence length (>5 nm)higher than superconducting cuprates, low-cost starting materials and, above all, a transition temperature accessible to single stage cryocooler. Thanks to these properties, many efforts were done in order to synthesize MgB2 for large-scale applications, in form of bulk, wires, tapes and films.
Presentation: oral at E-MRS Fall Meeting 2004, Symposium E, by Valeria Dellaroca
See On-line Journal of E-MRS Fall Meeting 2004
Submitted: 2004-05-01 11:33 Revised: 2009-06-08 12:55
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