Surface structure of intermetallic compound SbSn prepared by non-equilibrium solidification

Intermetallic compound SbSn of different crystal structure was prepared by melting rapidly quench. Surface structure of obtained material was characterized by AES and XPS. Results revealed that the contents of Sb in the surface of material (a) prepared at the condition of voltage 30 V, current 400 A, and quench speed 30 m·s^-1 were greater than that (b) prepared at the condition of voltage 20 V, current 20 A, and quench speed 30 m·s ^-1, and the valence state of Sb in the surface of the material prepared at the first condition was +3; while that prepared at the second condition was zero. The structures and desulfurization performance of material prepared at different quench speeds were studied. Result shows that the material being prepared at the condition of voltage 30 V, current 400 A, the composition of trigonal system crystal structure increase with the quench speed, and its desulfurization performance was also enhanced with the quench speed.