heats of formation of aluminum-cerium intermetallic compounds

descriptionPublicationkeyboard_double_arrow_right Article 01 Sep 1991 Italy English Publisher:Springer Science and Business Media LLCJournal:Metallurgical Transactions A, volume 22, pages 2,119-2,123 (issn: 0360-2133, eissn: 2379-0180,

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Authors: BORZONE, GABRIELLA; CACCIAMANI, GABRIELE; FERRO, RICCARDO;

doi: 10.1007/bf02669879

handle: 11567/326481

heats of formation of aluminum-cerium intermetallic compounds

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Abstract

The formation heats of the intermetallic compounds of aluminum and cerium were studied using a differential direct isoperibol calorimeter. The composition and equilibrium state of the samples were confirmed by metallographic and X-ray analyses. For the various compounds, the ΔHform (for the reaction in the solid state at 300 K) was determined as follows (kJ/mol of atoms): Ce3Al: -27.0 ± 2; CeAl: -46.0 ± 3; CeAl2: -50.0 ± 2; and Ce3Al11: -41.0 ± 2. The results are discussed and compared with the values which can be found in literature.

Country

Italy

Related Organizations

University of Genoa
Italy

Keywords

ALLOYS; THERMOCHEMISTRY; ENTHALPIES

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