Hegde, M. S. ; Sampath Kumar, T. S. ; Mallya, R. M. (1983) A study of surface segregation and oxidation of Cu-Mn alloys by X-ray photoelectron and auger spectroscopy Applications of Surface Science, 17 (1). pp. 97-106. ISSN 0378-5963
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/037859...
Related URL: http://dx.doi.org/10.1016/0378-5963(83)90114-9
Abstract
Segregation of Mn in Cu-Mn(5%) alloy is observed in the temperature range of 520 to 700 K. The activation enthalpy of segregation is found to be about 25 kJ/mole. Surface oxidation of Cu-Mn(5%) below and above the segregation temperature shows Cu2O formation on the surface. On vacuum annealing the oxidized alloy at 670 K, the displacement reaction Cu2O+Mn → 2Cu+ MnO occurs on the surface. The oxidation behaviour of Cu-Mn(25%) is similar to that of Cu-Mn(5%).
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 15831 |
| Deposited On: | 13 Nov 2010 12:27 |
| Last Modified: | 03 Jun 2011 09:22 |
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