ISSN:
1573-9139
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions The wetting angles of rare-earth metal oxides of the yttrium group with copper and copper-titanium alloys are higher than for Al2O3, 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 Al2O3. 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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01399777
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