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| Summary: In this study, YBa2Cu3O7-x (Y123) superconductors were fabricated using Flame-Quench-Melt-Growth (FQMG), FQMG in Y2BaCuO5 (Y211) crucible and Melt-Powder-Melt-Growth (MPMG) techniques as it is really that quality superconductors have been produced by melt processes. Although all techniques are melt processes, Platinum (Pt) and Y211 crucibles were used throughout the melt process in the second technique and the sintering process in third technique, respectively. It was reported by a lot of researchers that superconducting forming rate is approximately about 30-40% in compact materials fabricated with conventional melt techniques. In both the second and third techniques, it was aimed to obtain the superconductor forming rate more than the conventional melt technique, and the superconducting forming rate in MPMG technique has been attained approximately about 80%. The superconductors prepared with these methods have been also compared with respect to some structural and magnetic properties as well as mentioned above by means of x-ray diffraction (XRD), optical micrographs, magnetic levitation force and magnetization measurements. The levitation force, critical current density calculated from Bean Critical State Model and flux pinning force density were investigated by taking account of orientations, sizes and boundary states of grains with the sizes and dispersion of second phase particles (SPP) in the compact samples. As shown from results, the superconducting forming rate of the samples prepared with the MPMG technique is clearly higher than the others. The reason is why this technique is pretty effective there is a rate of 1% Pt doped in the compact samples during the melt process.Keywords: Y123 Superconductor, MPMG Process, FQMG Process, Superconductivity Forming Rate, Magnetic Levitation Force, Critical Current Density, Pinning Force Density.
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