Synthesis of Fe-Doped Titanite and Quasi-Titanite Structures and Studying the Effect of Doping on Physical and Optical Properties

Document Type : Original Article

Authors

1 Nano Pigments and Coatings Laboratory, Department of Physics, Yazd University, P.O. Box: 89195-741, Yazd, Iran.

2 Color and Paint Laboratory, Eefa Ceram Company, P.O. Box: 89551-65833, Yazd, Iran

Abstract

Fe-doped titanite (TiCaSiO5) and quasi-titanite (Ti0.5CaSi1.5O5) compositions were synthesized by the ceramic method. For each structure, two samples with 0.1 mol% and 0.2 mol% Fe were used. The synthesized samples were homogenized using a planetary ball mill in 2-ethylhexyl stearate solvent and then printed on the ceramic with screen printing system. The samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), dynamic light scattering (DLS), UV-Vis spectroscopy and CIE L*a*b*colorimetry methods. XRD results showed that more iron has entered to the titanite structure relative to the quasi-titanite structure with different crystal parameters. The SEM images of the powder and the printed ceramic as well as DLS results showed that the particle size of the quasi-titanite structure is smaller than that of titanite structure. The results of colorimetry and reflection spectra showed that the color of the synthesized quasi-titanite structure was beige and yellowish beige while that of titanite structure was beige and brown beige, according to the RAL color system.

Keywords

References

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Progress in Color, Colorants and Coatings
Volume 11, Issue 4
November 2018
Pages 221-231

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