Melt-texturing processes of HTS

Improvement on the melt-texturing performance of a (Y,Ta)0.5BaO3–YBa2Cu3Oy composite with superconductor applications

“…This fact suggests that the thermodynamic transformations are intimately associated with the liquid-solid reaction. This assertion is based on the phase diagram [30] where two distinctive peritectic transformations are observed, i.e. at 935 1C and 1015 1C.…”

“…This reflects the decompositions of the pure Y123 and the Y 2 BaCuO 5 , as shown in Eqs. (7) and (8), respectively [30].…”

“…Alternatively, a seed of the single crystal process should provide a massive material in a reduced time. This means that the drive-force should be commonly called as a top seed melt growth [26][27][28][29][30][31].…”

Effect of In2O3 on the grain connectivity and superconducting behavior of Bi2Sr2−xInxCaCu2O8+d

“…The granular features of ceramic superconductors such as grain size, connectivity and porosity significantly affect its superconducting and current-carrying ability. Efforts to improve grain structure and connectivity include doping and several fabrication processes such as hot pressing, melt growth and laser floating zone techniques [1][2][3][4]. Increasing the size of superconducting grains could reduce the grain boundary loss through which current flows.…”

Phase transformation in doped Y–Ba–Cu–O superconductors obtained by different melt processing techniques

“…According to another conception the growth of Y123 is believed to be an Y-diffusion controlled process. 2 The development of the microstructure depends basically on the processing parameters, such as temperature and time of the heat treating, heating and cooling rates, atmosphere, particle size and the applied substitutions. These parameters will also influence the establishment of equilibrium or metastable phase assemblages.…”