Phase transformation and reaction kinetics of BaK122 precursor synthesized via a two-step methodXinyuan Liu, Xianping Zhang, Chiheng Dong, Minghui Tang, Dongliang Wang and Yanwei MaEur. Phys. J. B, 98 4 (2025) 80DOI: https://doi.org/10.1140/epjb/s10051-025-00927-0