| Autor: |
Naidich, Yu., Zhuravlev, V., Frumina, N., Verkhovodov, P., Lashneva, V. |
| Zdroj: |
Refractories; 1985, Vol. 26 Issue 7/8, p403-407, 5p |
| Abstrakt: |
The wetting angles of rare-earth metal oxides of the yttrium group with copper and copper-titanium alloys are higher than for AlO, which qualitatively agrees with the greater changes (in absolute values) in the free Gibbs energies for the formation of rare-earth oxides in comparison with AlO. The nonstoichiometric nature of the rare-earth oxides in respect to oxygen and the higher mobility of the oxygen anion substantially influence the kinetics of wetting, increasing the duration of the change in the wetting angle with energy possibilities for the melt to absorb the oxygen from the substratum. The highest reaction resistance in the metal alloys is exhibited by rare-earth oxides with the minimum capacity for nonstoichiometry undergoing deoxidizing treatment. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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