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Erschienen in:

01.04.2014

Influence of rare-earth addition on the long-period stacking ordered phase in cast Mg–Y–Zn alloys

verfasst von: Gerardo Garcés, Guillermo Requena, Domonkos Tolnai, Pablo Pérez, Paloma Adeva, Andreas Stark, Norbert Schell

Erschienen in: Journal of Materials Science | Ausgabe 7/2014

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Abstract

The microstructure and thermal stability of the Mg₉₇Y₂Zn₁ (at.%) alloy, modified with the addition of 0.5 at.% of gadolinium or neodymium, have been examined by synchrotron radiation diffraction during in situ differential scanning calorimetry. The microstructure of the three alloys consists of magnesium dendrites with the Long Period Stacking Ordered (LPSO) phase at interdendritic regions. Rare-earth atoms substitute yttrium atoms in the LPSO phase, promoting the formation of the 14H structure. Lattice parameters of the LPSO do not change significantly with the rare-earth addition. However, they reduce the melting point of the LPSO phase, especially in the case of neodymium addition.

Vorheriger Artikel Superior DeNO x activity of V2O5–WO3/TiO2 catalysts prepared by deposition–precipitation method

Nächster Artikel First-principles computational design and synthesis of hybrid carbon–silicon clathrates

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Titel: Influence of rare-earth addition on the long-period stacking ordered phase in cast Mg–Y–Zn alloys
verfasst von: Gerardo Garcés
Guillermo Requena
Domonkos Tolnai
Pablo Pérez
Paloma Adeva
Andreas Stark
Norbert Schell
Publikationsdatum: 01.04.2014
Verlag: Springer US
Erschienen in: Journal of Materials Science / Ausgabe 7/2014
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-013-7967-4

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