In this study, we have investigated the optical and high-temperature thermochromic properties of yttrium iron garnet powder and paint. The powders were produced using the solid-state reaction technique, and the thermochromic paint was sprayed over an Al alloy substrate. X-ray diffraction patterns, optical and field emission scanning electron microscopes, and UV-Vis and FTIR spectrophotometers were used to assess the structural, surface morphology and optical characteristics of the materials. The thermochromic characteristics of the samples were investigated by extracting the chromatic coordinates L*b*a* from digital pictures taken at temperatures ranging from 25 to 210 °C. The results reveal that when the temperature rises, the color of the paint changes from dark green to dark brown. The charge transfer between oxygen and iron ions, as well as the electron transition across the orbitals of the d layer, could be responsible for the observed reversible color change. The paint has strong thermal stability up to 350 °C which is suitable for high-temperature thermochromic applications.
Rostamnejadi,A. , Madahi Harandi,M. and Jazirehpour,M. (2023). Optical and thermochromic properties of yttrium iron garnet paint. Iranian Journal of Physics Research, 23(3), 67-73. doi: 10.47176/ijpr.23.3.81544
MLA
Rostamnejadi,A. , , Madahi Harandi,M. , and Jazirehpour,M. . "Optical and thermochromic properties of yttrium iron garnet paint", Iranian Journal of Physics Research, 23, 3, 2023, 67-73. doi: 10.47176/ijpr.23.3.81544
HARVARD
Rostamnejadi A., Madahi Harandi M., Jazirehpour M. (2023). 'Optical and thermochromic properties of yttrium iron garnet paint', Iranian Journal of Physics Research, 23(3), pp. 67-73. doi: 10.47176/ijpr.23.3.81544
CHICAGO
A. Rostamnejadi, M. Madahi Harandi and M. Jazirehpour, "Optical and thermochromic properties of yttrium iron garnet paint," Iranian Journal of Physics Research, 23 3 (2023): 67-73, doi: 10.47176/ijpr.23.3.81544
VANCOUVER
Rostamnejadi A., Madahi Harandi M., Jazirehpour M. Optical and thermochromic properties of yttrium iron garnet paint. Dear user; Recently we have changed our software to Sinaweb. If you had already registered with the old site, you may use the same USERNAME but you need to change your password. To do so at the first use, please choose, 2023; 23(3): 67-73. doi: 10.47176/ijpr.23.3.81544