Corrosion behaviour of sputtered alumina thin films
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
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| Title |
Corrosion behaviour of sputtered alumina thin films
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| Creator |
Reddy, IN
Dey, Arjun Sridhara, N Anoop, S Rani, RU Sharma, AK Bera, Parthasarathi Anandan, C |
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| Subject |
Chemistry and Materials (General)
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| Description |
Corrosion behaviour of sputtered alumina thin films
Abstract: Corrosion studies of sputtered alumina thin films grown on stainless steel (SS) 304 were carried out by linear polarization and electrochemical impedance spectroscopy. Noticeable changes were not observed in morphology and surface roughness of films after the corrosion studies investigated by field emission scanning electron microscopy and atomic force microscopy. Corrosion current density (icorr) of alumina coated SS decreased up to 10-10 A.cm-2 while icorr value in the range of 10-5-10-6 A.cm-2 was observed for bare SS. The direct sputtered film showed superior corrosion resistance behaviour than the reactive sputtered film. This might be link with the difference in thickness of the films sputtered by direct and reactive methods. The electronic structure of deposited alumina films was studied both before and after corrosion test by X-ray photoelectron spectroscopy technique which also confirmed no structural changes of alumina film after exposing corrosive environment.
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| Publisher |
Springer
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| Date |
2015
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| Type |
Journal Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://nal-ir.nal.res.in/12462/1/ja731.pdf
Reddy, IN and Dey, Arjun and Sridhara, N and Anoop, S and Rani, RU and Sharma, AK and Bera, Parthasarathi and Anandan, C (2015) Corrosion behaviour of sputtered alumina thin films. Journal of Institute of Engineers Series D, 96 (2). pp. 105-112. ISSN 2250-2130 |
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| Relation |
http://dx.doi.org/10.1007/s40033-015-0072-x
http://nal-ir.nal.res.in/12462/ |
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