full mechanical alloying  (Cole-Parmer)

Journal: Nature

Article Title: Composable neural emulators accelerate thermoelectric generator design

doi: 10.1038/s41586-026-10223-1

Figure Lengend Snippet: a , Framework for a typical n–p paired TE generator design. b , c , 3D plots of η max ( b ) and P max ( c ) as functions of A p / A n and H /( A p + A n ) for the Mg 3 Bi 1.4 Sb 0.6 –MgAgSb n–p paired TE generator predicted by TEGNet. d , e , Corresponding 2D contour plots of η max ( d ) and P max ( e ). f , Scatter plot of normalized P max and η max from TEGNet versus COMSOL. g , Optical image of the fabricated Mg 3 Bi 1.4 Sb 0.6 –MgAgSb two n–p paired TE generator and its measurement set-up. h , i , I -dependent V 0 and P ( h ) and Q 0 and η ( i ) for the fabricated Mg 3 Bi 1.4 Sb 0.6 –MgAgSb two n–p paired TE generator under different T h . j , T -dependent η max for the fabricated Mg 3 Bi 1.4 Sb 0.6 –MgAgSb two n–p paired TE generator and comparison with other TE generators based on different TE material systems , , , . k , 3D and 2D contour plots of η max as functions of A p / A n and H /( A p + A n ) for the Mg 3 Sb 1.5 Bi 0.5 –SnS n–p paired TE generator predicted by TEGNet. l , 2D contour plots of η max of n-type segmented Mg 3 Sb 1.5 Bi 0.5 /Mg 3 Bi 1.4 Sb 0.6 –p-type GeTe paired TE generator as functions of leg length ratio and geometry predicted by TEGNet.

Article Snippet: MgAgSb and Mg 3 Bi 1.4 Sb 0.6 were prepared by ball milling (SPEX 8000D) in an Ar atmosphere for 5 h, whereas Bi 0.4 Sb 1.6 Te 3 was prepared by melting at 1,273 K in a quartz tube for 12 h, followed by ball milling of the resulting ingot for 1 h. The raw materials used are high-purity Mg turnings (99.95%), Ag powders (99.99%), Sb shots (99.999%), Bi shots (99.999%), Te shots (99.999%) and In powders (99.99%).

Techniques: Comparison