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Details
Thermodynamics and phase equilibria in the Ca-Cu-O system
| Author | Suzuki, R.O.; Bohac, P.; Gauckler, L. J. | |
| Year | 1994 | |
| Type | Journal Article | |
| Journal | J. Am. Ceram. Soc. | |
| Volume | 77 | |
| Issue | 1 | |
| Pages | 41-48 | |
| Date | 1994/1 | |
| Custom 1 | JA | |
| Custom 2 | TM | |
| Abstract | Phase equilibria in the CaO-CuO-Cu system were determined at 1173 K from the results of X-ray diffraction measurements using specimens annealed in the oxygen partial pressure range from PO(2) = 1 to 10-8 atm. Electromotive force (emf) measurements using ZrO2 solid electrolyte cells were carried out in the ternary phase equilibria. Gibbs free energies for the chemical reactions were summarized by equations with linear temperature dependence, and the standard free energy of formation for Ca2CuO3 was derived. The stability conditions of the oxides are displayed in the p-T-x diagram, and the possible phase equilibria with the liquid are evaluated. [Author abstract; 38 Refs; In English] | |
| URL | ||
| Record Number | 173 | |
| Group | nonmet |
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