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dc.contributor.author Khamlich, S
dc.contributor.author Nuru, ZY
dc.contributor.author Nemutudi, R
dc.contributor.author Nemraoui, O
dc.contributor.author Roro, Kittessa T
dc.contributor.author Mongwaketsi, N
dc.contributor.author McCrindle, R
dc.contributor.author Cingo, N
dc.contributor.author Maaza, M
dc.date.accessioned 2012-03-28T15:07:43Z
dc.date.available 2012-03-28T15:07:43Z
dc.date.issued 2011-07
dc.identifier.citation Khamlich, S, Nuru, ZY, Nemutudi, R, Nemraoui, O, Roro, KT, Mongwaketsi, N, McCrindle, R, Cingo, N and Maaza, M. Cr/alpha-Cr2O3 monodispersed spherical core-shell particles based solar absorbers. 56th Annual Conference of the South African Institute of Physics 2011, St George Hotel, Pretoria, 12-15 July 2011, pp 140-145 en_US
dc.identifier.isbn 978-1-86888-688-3
dc.identifier.uri http://www.saip.org.za/images/stories/documents/SAIP_Proceedings/SAIP2011_Proceedings.djvu
dc.identifier.uri http://hdl.handle.net/10204/5697
dc.description 56th Annual Conference of the South African Institute of Physics 2011, St George Hotel, Pretoria, 12-15 July 2011 en_US
dc.description.abstract Monodispersed spherical core-shell particles of Cr/alpha-Cr2O3 cermet ACG coatings investigated within this contribution could be successfully employed in thermal converters. Their selectivity depends on their chemical, physical and structural characteristics and related optical properties like reflectance, emittance, solar light absorption, or absorptance and transmittance. Parameters such as particles size, aging-time and substrate roughening will greatly influence their relevant optical properties as reported. The coated Cr/alpha-Cr2O3 spherical particles on rough copper substrates by a simple self-assembly-like method were characterized by scanning electron microscopy, energy dispersive spectrometry, Raman spectroscopy, and diffuse reflectance UV-VIS-NIR spectroscopy. The samples aged for more than 40h at 75 degrees C exhibit the targeted high absorbing optical characteristic “Black chrome” while those aged for smaller or equal to 40h show a significant high diffuse reflectance. en_US
dc.language.iso en en_US
dc.publisher UNISA en_US
dc.relation.ispartofseries Workflow;8629
dc.subject Solar absorbers en_US
dc.subject Particles size en_US
dc.subject Solar light absorption en_US
dc.subject Cr/alpha-Cr2O3 spherical particles en_US
dc.title Cr/alpha-Cr2O3 monodispersed spherical core-shell particles based solar absorbers en_US
dc.type Presentation en_US


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