Ebrahimifar, Hadi and Zandrahimi, Morteza (2012) Decrease of electrical conductivity activation energy of Co-coated AISI 430 alloy. Journal of Metallurgy and Materials Science, 54(2). pp. 143-148.
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Abstract
The application of conductive coatings on ferritic stainless steel can decrease
electrical conductivity. The aim of this research was to investigate the electrical
conductivity of cobalt coated AISI 430 ferritic stainless steel by pack cementation
technique. Coated coupons were analyzed using scanning electron microscopy (SEM).
Electrical conductivity of the coated substrates was measured as a function of temperature
by oxidizing the samples from room temperature to 700ºC. Also electrical conductivity
has been measured as a function of oxidation time during isothermal oxidation at 700ºC.
Results showed the increase of temperature caused to the decrease of electrical
conductivity and also, the coating layer converted to cobalt spinels during annealing in
isothermal oxidation. The formation of MnCo2O4, CoCr2O4, CoFe2O4 and Co3O4 spinels
improved electrical conductivity activation energy of coated substrates (0.03 eV)
compared to uncoated substrates (0.039 eV).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Cobalt, AISI 430, Electrical conductivity activation energy, Solid oxide fuel cell. |
| Subjects: | Electrical and Electronics |
| Divisions: | Engineering |
| Depositing User: | Users 5 not found. |
| Date Deposited: | 12 Feb 2013 10:18 |
| Last Modified: | 03 Sep 2026 08:07 |
| URI: | http://eprints.nmlindia.org/id/eprint/6378 |
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