Infrared emissivity of Sr doped lanthanum manganites in coating form Shen Xingmei, E-mail: xxxxmx@126.com [Anhui Provincial Key Laboratory of Metallurgy Engineering and Resources Recycling, Anhui University of Technology, Ma'anshan, Anhui Province 243002 (China)]; Liaosha, Li; Xingrong, Wu; Zhifang, Gao [Anhui Provincial Key Laboratory of Metallurgy Engineering and Resources Recycling, Anhui University of Technology, Ma'anshan, Anhui Province 243002 (China)]; Guoyue, Xu [College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Yu Dao Street 29, Nanjing 210016 (China)] 36 MATERIALS SCIENCE; ABSORPTION; CERAMICS; DOPED MATERIALS; EMISSIVITY; EPOXIDES; IRRADIATION; LANTHANUM; MORPHOLOGY; PARTICLES; PIGMENTS; POLYURETHANES; REFLECTION; RESINS; ROUGHNESS; SOLIDS; SURFACES; VISIBLE RADIATION; ELECTROMAGNETIC RADIATION; ELEMENTS; MATERIALS; METALS; OPTICAL PROPERTIES; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHYSICAL PROPERTIES; PLASTICS; POLYAMIDES; POLYMERS; RADIATIONS; RARE EARTHS; SORPTION; SURFACE PROPERTIES; SYNTHETIC MATERIALS ELECTROMAGNETIC RADIATION; ELEMENTS; MATERIALS; METALS; OPTICAL PROPERTIES; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHYSICAL PROPERTIES; PLASTICS; POLYAMIDES; POLYMERS; RADIATIONS; RARE EARTHS; SORPTION; SURFACE PROPERTIES; SYNTHETIC MATERIALS Highlights: > LSMO and epoxy modified polyurethane as pigment and resin matrix, respectively. > The {epsilon}{sub N} of the coating decreases with the increase of LSMO. > Surface roughness has no significant effect on the emissivity of the coating. > Variable-emissivity property of the coating remains unchanged before and after ultraviolet irradiation. - Abstract: The Sr doped lanthanum manganite coatings were prepared using La{sub 0.8}Sr{sub 0.2}MnO{sub 3} particles and epoxy modified polyurethane as pigment and resin matrix, respectively. The structure, morphology, surface roughness and infrared normal emissivity ({epsilon}{sub N}) in the 3-5 and 8-14 {mu}m wavebands of the samples were systematically investigated. With the increase of La{sub 0.8}Sr{sub 0.2}MnO{sub 3} pigment, the {epsilon}{sub N} of the coatings decreases and the {epsilon}{sub N} values in the 8-14 {mu}m waveband are higher than those in the 3-5 {mu}m waveband. The surface roughness has no significant effect on the infrared emissivity of LSMO coatings. For 50% LSMO coating, the sample shows variable-emissivity property in the 8-14 {mu}m waveband and the emissivity property remains unchanged before and after ultraviolet irradiation. Available from http://dx.doi.org/10.1016/j.jallcom.2011.05.072 Netherlands 2011-08-04 English Journal Article Journal Name: Journal of Alloys and Compounds; Journal Volume: 509; Journal Issue: 31; Other Information: DOI: 10.1016/j.jallcom.2011.05.072; PII: S0925-8388(11)01184-4; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved. Medium: X; Size: page(s) 8116-8119 https://doi.org/10.1016/j.jallcom.2011.05.072 [] 31 509 Journal ID: ISSN 0925-8388; JALCEU; TRN: NL12R1684047721 NLN 2012-12-11 21570204