The 500 °C Isothermal Section of the Al-Co-Nd Ternary System

Riani, P.; Freccero, R.; Sufryd, K.; Arrighi, L.; Cacciamani, G.

doi:10.1007/s11669-020-00789-2

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The 500 °C Isothermal Section of the Al-Co-Nd Ternary System

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Freccero, R.
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Riani, P., Freccero, R., Sufryd, K., Arrighi, L., & Cacciamani, G. (2020). The 500 °C Isothermal Section of the Al-Co-Nd Ternary System. Journal of Phase Equilibria, 347-364. doi:10.1007/s11669-020-00789-2.

Cite as: https://hdl.handle.net/21.11116/0000-0006-0D8F-C

Abstract

The Al-Co-Nd isothermal section at 500 degrees C has been investigated in the whole composition range by means of x-ray diffraction, optical and scanning electron microscopy and electron probe microanalysis. The following ternary phases have been identified or confirmed: tau(1)-Nd4CoAl (cF96-Gd4RhIn), tau(2)-NdCo2Al8 (oP44-CeFe2Al8), tau(3)-NdCo3Al11 (unknown), tau(4)-Nd2Co3Al9 (oS56-Y2Co3Ga9) tau(5)-Nd5Co2Al2 (unknown), tau(6)-Nd2Co6Al19 (mS108 U2Co6Al19), tau(7)-Nd7Co6Al7 (tP40-Pr7Co6Al7), tau(8)-Nd2Co2Al (oI10-W2CoB2), tau(9)-Nd13Co14-xAl4+x (0 <= x <= 0.7, oS28-W3CoB3). The complex system of phase equilibria linking the large number of binary and ternary Al-Co-Nd phases at 500 degrees C has been completely determined. The general characteristics of the section have been discussed in comparison with those of other Al-Co-R systems.