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Experimental investigation of the Nd–Al–Si system

The isothermal section at 500 °C

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Abstract

The isothermal section of the Nd–Al–Si ternary system at 500 °C has been investigated using differential thermal analysis, X-ray diffraction analysis, scanning electron microscopy and electron micro-probe analysis. Four ternary intermetallic compounds were confirmed: NdAl2Si2 (τ1), hP5-CaLa2O2 structure type, Nd2Al3Si (τ2), hP3-AlB2 structure type, NdAl1−x Si1+x , 0.25 ≤ x ≤ 0.3 (τ3), tI12-αThSi2 structure type and Nd2Al1−x Si1+x , 0 ≤ x ≤ 0.2, (τ5), oS8-CrB structure type. A new ternary intermetallic phase (τ4) was found: Nd4Al3Si3, orthorhombic oS20, isotypic with Pr4Al3Ge3.

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Authors and Affiliations

  1. Dipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso, 31, 16146, Genoa, Italy

    Anna Maria Cardinale, Daniele Macciò, Stefano Delfino & Adriana Saccone

Authors
  1. Anna Maria Cardinale
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  2. Daniele Macciò
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  3. Stefano Delfino
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  4. Adriana Saccone
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Correspondence to Anna Maria Cardinale.

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Cardinale, A.M., Macciò, D., Delfino, S. et al. Experimental investigation of the Nd–Al–Si system. J Therm Anal Calorim 103, 103–109 (2011). https://doi.org/10.1007/s10973-010-1112-2

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