In:
International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 99, No. 3 ( 2008-03-01), p. 294-300
Abstract:
The Cu – Se system was modeled by means of the CALPHAD technique. Considering two miscibility gaps of the liquid existed on each side of the compound Cu 2 Se, the associate model with the associate species “Cu 2 Se” was adopted to describe the Gibbs energy for the liquid and compared to the random solution model. The optimizing results showed that the thermodynamic model describing the liquid phase as a solution of Cu, Se and a “Cu 2 Se” associate fits well with the experimental data. The intermetallic compounds, Cu 3 Se 2 , α-CuSe, β-CuSe, γ-CuSe and CuSe 2 were treated as stoichiometric compounds. The com-pounds α-Cu 2 Se and β-Cu 2 Se, which have a homogeneity range, were treated as the formulae α-(Cu, Se) 2 Se and β-(Cu, Se) 2 Se by a two-sublattice model. A set of self-consistent thermodynamic parameters of the Cu – Se system was obtained.
Type of Medium:
Online Resource
ISSN:
2195-8556
,
1862-5282
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
2008
detail.hit.zdb_id:
2232675-3
detail.hit.zdb_id:
2128058-7
detail.hit.zdb_id:
203021-4
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