Thermodynamics of cadmium- and zinc-rich alloys in the Cd−La, Cd−Ce, Cd−Pr, Zn−La, Zn−Ce and Zn−Pr systems
| Autor: | Robert M. Yonco, Irving Johnson |
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| Rok vydání: | 1970 |
| Předmět: | |
| Zdroj: | Metallurgical Transactions. 1:905-910 |
| ISSN: | 2379-0083 0026-086X |
| DOI: | 10.1007/bf02811772 |
| Popis: | The thermodynamics of the cadmium- and zinc-rich alloys in the Cd−La, Cd−Ce, Cd−Pr, Zn−La, Zn−Ce, and Zn−Pr systems have been studied with a high-temperature galvanic cell method. The values of the standard free energy of formation (kcal per mole) of the intermetallic compounds are given by the equations: $$\begin{gathered} (LaCd_{11} ), \Delta Gf^ \circ = - 72.3 + 43.6 \times 10^{ - 3} T (670^ \circ to 804^ \circ K) \hfill \\ (CeCd_{11} ), \Delta Gf^ \circ = - 70.5 + 44.6 \times 10^{ - 3} T (638^ \circ to 884^ \circ K) \hfill \\ (PrCd_{11} ), \Delta Gf^ \circ = - 69.1 + 44.8 \times 10^{ - 3} T (635^ \circ to 825^ \circ K) \hfill \\ (LaZn_{11} ), \Delta Gf^ \circ = - 92.6 + 48.0 \times 10^{ - 3} T (705^ \circ to 793^ \circ K) \hfill \\ (CeZn_{11} ), \Delta Gf^ \circ = - 87.9 + 45.0 \times 10^{ - 3} T (710^ \circ to 1018^ \circ K) \hfill \\ (PrZn_{11} ), \Delta Gf^ \circ = - 85.3 + 42.7 \times 10^{ - 3} T (696^ \circ to 875^ \circ K) \hfill \\ \end{gathered} $$ |
| Databáze: | OpenAIRE |
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