Uma, C. S. ; Malhotra, L. K. ; Chopra, K. L. (1987) Spectrally selective surfaces on stainless steel produced by chemical conversion Thin Solid Films, 147 (3). pp. 243-249. ISSN 0040-6090
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/004060...
Related URL: http://dx.doi.org/10.1016/0040-6090(87)90019-8
Abstract
Solar selective coatings on stainless steel, stable up to 200 °C, were prepared by chemical conversion. The coatings had an integrated absorptance a of about 0.91 and a hemispherical thermal emittance ε100 of about 0.12. Compositional analysis revealed that these coatings consisted of a mixture of Fe2O3, Cr2O3 and elemental iron graded towards the substrate. The absorption seems to be partly due to interference effects and partly due to metallic particles dispersed in a semiconducting Fe2O3-Cr2O3 matrix. The degradation of coatings above 200 °C was found to be due to the increase in thickness of the oxide layer and to the absence of elemental iron.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 22990 |
| Deposited On: | 25 Nov 2010 13:43 |
| Last Modified: | 28 May 2011 05:03 |
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