fig15

Figure 15. Machine learning results of phase stability of doped SmCo₇ alloys. (A) Average area under curve (AUC) value as a function of the number of composition features, where the highest AUC corresponding to each number of features is marked with red. (B) Data distribution and classification of phase constitutions of SmCo_7-xM_x alloys in the dataset based on the two selected features of doping elements. (C) Prediction of 1:7 single phase probability with various doping elements for SmCo_7-xM_x ribbons. (D) Prediction of 1:7 single phase probability with various doping elements for SmCo_7-xM_x sintered bulks. In (C) and (D), different grain sizes and doping contents are considered for various doping elements.