Krishnan, R. ; Kesavamoorthy, R. ; Dash, S. ; Tyagi, A. K. ; Baldev Raj, (2003) Raman spectroscopic and photoluminescence investigations on laser surface modified α-Al2O3 coatings Scripta Materialia, 48 (8). pp. 1099-1104. ISSN 1359-6462
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S13596...
Related URL: http://dx.doi.org/10.1016/S1359-6462(02)00631-0
Abstract
Laser surface modification of plasma sprayed alumina coatings were carried out for obtaining desired structural and microstructural transformations. Appearance of Raman modes was used to detect the transformation of Al2O3 from γ to α phase. Photoluminescence due to the natural occurrence of Cr3+ ions was used to probe the densification and enhancement of the surface quality of the coatings brought about by laser treatment.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Laser Surface Modification; Alumina Coatings; Non-destructive Testing; Raman Spectroscopy; Photoluminescence |
| ID Code: | 40371 |
| Deposited On: | 24 May 2011 04:30 |
| Last Modified: | 24 May 2011 04:30 |
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