Phase equilibria in the Sm–Al–Si system at 500 °C |
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Authors: | Anna Maria Cardinale Daniele Macciò Adriana Saccone |
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Institution: | 1. Dipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso31, 16146, Genoa, Italy
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Abstract: | The isothermal section at 500 °C of the Sm–Al–Si system has been experimentally investigated by using scanning electron microscopy, electron microprobe analysis and X-ray powder diffraction. Four intermetallic compounds have been confirmed: τ1-SmAl2Si2 (hP5-CaAl2Si2 type), τ2-SmAlxSi1?x (tI12-Th2Si type), τ4-SmAl0.5Si0.5 (oS8-CrB type) and τ5-Sm6Al3Si (tI80-Tb6Al3Si type). A new ternary intermediate has been found: τ3-Sm4Al3Si3 that crystallizes orthorhombic isostructural with Pr4Al3Ge3. |
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