THE SmCo_5 AND Sm_2Co_(17) TYPES OF STRUCTURES FORMED IN THE LATEXES

Particles with different diameters in the latexes are observed under a metallurgical microscope. The large, middle and small particles form the crystal structures of the SmCo_5, Sm_2Co_(17) types and the Laves phase of intermetallic compounds through nucleation and growth. An amorphous structure, the crystal structure at composition off the 1:5 or 2:17 stoichiometry, point defects and boundaries between various types of structures are observed in the latexes. Latexes are shown to be useful to study at atomic level the morphology of Sm-Co and Sm-Co-Zr alloys.