Thermodynamic investigations of AlLa alloys
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Cited by (45)
Microstructures and mechanical properties in a Gd-modified high-pressure die casting Mg–4Al–3La−0.3Mn alloy
2020, Materials Science and Engineering: ACitation Excerpt :However, Al7(La,Gd)3 unexpectedly appears. In the previous literature involving Mg–Al−RE-based alloys, Al7RE3 has not been experimentally observed except thermodynamic investigations of Al–La alloys [41,49]. Zhou et al. [41] stated that Al7La3 can be formed according to the reaction: liquid + Al2La → Al7La3 or liquid → β-Al11La3 and Al7La3.
First-principles phase stability and elastic properties of Al-La binary system intermetallic compounds
2015, IntermetallicsCitation Excerpt :In addition, the strong well-defined phonon peaks at lower frequencies are observed for the two Al4La allotropes compared with Al11La3 according to Fig. 3b. The more weighted low-frequency phonon states lead to a larger vibrational entropy, leading to a subsequently decrease on free energy difference between Al4La and Al11La3 at non-zero temperatures [32,42]. Thus, the two Al4La allotropes will become more stable as temperature rises.
Electrochemical behaviour of LaCl <inf>3</inf> at tungsten and aluminium cathodes in LiCl-KCl eutectic melt
2012, Electrochimica ActaCitation Excerpt :Our values are in good agreement with those reported by Castrillejo et al. measured using the same technique. Sommer et al. had measured the enthalpy of formation of aluminium–lanthanum alloys by solution calorimetry [47]. They have reported the enthalpy of formation of Al11La3 at 1513 K to be −41 ± 2.5 kJ mol−1 atom−1.
Thermodynamic evaluation and optimization of Al-La, Al-Ce, Al-Pr, Al-Nd and Al-Sm systems using the Modified Quasichemical Model for liquids
2011, Calphad: Computer Coupling of Phase Diagrams and ThermochemistryCitation Excerpt :It was demonstrated by their optical micrograph that it was difficult to reach an equilibrium state in calorimetric samples up to 32 at. % Al, which suggested indirectly that the La3Al phase reported in [49] was probably a metastable phase at room temperature. As a matter of fact, it was mentioned that La3Al was only stable in the temperature range of about 400–520 °C in the discussion part of Borzone et al. [50].
Ab initio calculation of the total energy and elastic properties of Laves phase C15 Al<inf>2</inf>RE (RE = Sc, Y, La, Ce-Lu)
2008, Computational Materials Science