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Thermodynamics and (p,T,x) phase diagram of (barium oxide + diyttrium trioxide)

โœ Scribed by K.N. Marushkin; G.D. Nipan; V.B. Lazarev

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
540 KB
Volume
27
Category
Article
ISSN
0021-9614

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โœฆ Synopsis

A mass-spectrometric investigation of phase equilibria in (barium oxide + diyttrium trioxide) is described. Standard molar enthalpies and standard molar Gibbs free energies of formation were determined for Ba3Y4O9(cr) and BaY2O4(cr). A (p, T, x) phase diagram for (barium oxide + diyttrium trioxide) was constructed in p (T ) and T (x) projections. A quasi-threedimensional representation of the (p, T, x) diagram by means of (T, x)p sections (Section-Stand Method) was proposed.

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