Thermal response of the iron-based Ba122 superconductor to in situ and ex situ processes

Abstract The thermal properties are one of the key parameters to control phase purity and microstructure polycrystalline materials. melting point iron-based BaFe 2 As superconductor (Ba122), which foresees high-field applications, remains controversial. In this work, thermogravimetry-differential scanning calorimetry measurements (TG-DSC) undoped Co-doped Ba122 were carried out. Mixtures elemental metals pre-reacted powders prepared investigate responses during in situ ex synthesis routes, respectively. addition, phases microstructures quenched samples evaluated elucidate observed exothermic/endothermic peaks. Our results suggest that is ?1300 °C.