.

Fig. 8.. Saturation magnetization determined from B-H curve tracer measurements as a function of two particle size classes (< 25 μm and 25-45 μm) for (a) {(Fe_0.6Co_0.4)_0.75B_0.2Si_0.05}₉₆Nb₄ and (b) Fe₇₆B₁₀Si₉P₅ as-atomized powders, as well as sintered toroidal rings. The toroidal rings had an outer and inner diameter of 13 and 8 mm as well as a height of 2.6 ± 0.15 mm. Conventional gas atomization and novel cooling strategies were considered for this study. Measurements on melt spinning samples (MS) were also plotted for comparison (the dashed line refers to the average saturation magnetization and the upper and lower edge of the orange area defines the upper and lower standard deviation). The abbreviations GA, GA + SCC, and GA + LQ stand for conventional gas atomization, conventional gas atomization and spray cone cooling, and conventional gas atomization and liquid quenching, respectively (see Fig. 1).