Study of parabolic rate constant for coated AISI 430 steel with Mn<sub>3</sub>O<sub>4</sub> and MnFe<sub>2</sub>O<sub>4 </sub>spinels
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
View Archive Info| Field | Value | |
| Creator |
Ebrahimifar, Hadi
Zandrahimi, Morteza |
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| Date |
2011-10-18T10:35:59Z
2011-10-18T10:35:59Z 2011-08 |
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| Identifier |
0975-1017 (Online); 0971-4588 (Print)
http://hdl.handle.net/123456789/12898 |
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| Description |
314-320
The oxidation resistance of AISI 430 ferritic stainless steels which are used as interconnects in solid oxide fuel cells (SOFCs) for the intermediate temperature operation can be improved with a protective coating layer. In this study, the pack cementation method is employed to coat AISI 430 ferritic stainless steel. Isothermal oxidation, cyclic oxidation and oxidation at different temperatures (600-900°C) are applied to evaluate the parabolic rate constant. The coated samples demonstrated lower parabolic rate constant (<i style="">k</i><sub>p</sub>) in each test and it indicates that the coating layer has acted as a mass barrier against the outward diffusion of cations specially chromium. XRD analysis revealed that the formation of Mn<sub>3</sub>O<sub>4</sub> and MnFe<sub>2</sub>O<sub>4 </sub>spinels during oxidation caused to the improvement of the oxidation resistance. |
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| Language |
en_US
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| Publisher |
NISCAIR-CSIR, India
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| Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
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| Source |
IJEMS Vol.18(4) [August 2011]
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| Subject |
Parabolic rate constant
AISI 430 ferritic stainless steel Oxidation Solid oxide fuel cell (SOFC) |
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| Title |
Study of parabolic rate constant for coated AISI 430 steel with Mn<sub>3</sub>O<sub>4</sub> and MnFe<sub>2</sub>O<sub>4 </sub>spinels
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| Type |
Article
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