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year 28, Issue 2 (ICOP & ICPET 2022 2022)                   ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 788-791 | Back to browse issues page

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Akbaryan M, Motahari H, Khojeh Aminian M. Raman Study and Vis-NIR reflectance spectroscopy of Co2TiO4, CoTiO3, Co2SiO4, CoSiO3 pigments. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :788-791
URL: http://opsi.ir/article-1-2613-en.html
1- Yazd university
Abstract:   (756 Views)

 
Abstract- In this research Raman and Vis-NIR reflectance spectroscopy of pigments including Co2TiO4، CoTiO3، Co2SiO4 and CoSiO3 has been studied. They can be found in dark green, light green, pink and blue, respectively. The sharp peak of the Co2TiO4 pigment can be seen at 686 cm-1. Also, the Raman peaks of CoTiO3 and Co2SiO4 are 680 cm-1 and 812 cm-1, respectively. The reflectance of Co2TiO4 and CoTiO3 are lower than 20 percent. The reflectance of Co2SiO4 and CoSiO3 are not similar. The reflectance of CoSiO3 was lower than 15 percent, while it is so high and variable for Co2SiO4 and even higher than 60 percent at 915 nm.

Keywords: UV-Vis-NIR, Raman Spectroscopy, ceramic pigments, reflectance, colorimetry.
 
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Type of Study: Experimental | Subject: Special

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