Abstract
Inorganic pigments containing lanthanides based on orthorhombic perovskite structure of CaSnO3 have been prepared by solid state reaction of CaCO3, SnO2 and lanthanide oxides (Tb4O7, Pr6O11, CeO2). The TG-DTA analysis indicates the formation of Ca-stannates around of temperature 1200°C, but from the pigmentary — application point of view, it is better to synthesize the product at higher temperature (1400 or 1500°C). The resultant materials were characterised by XRD, particle size distribution and measurement of colour properties. The doping of Ca-stannates by ions of rare earth elements (Tb, Pr, Ce) brings the production of two-and three-phase systems. The most interesting colour properties provided the stannate doped by ions of terbium and cerium and synthesized by heating at temperature 1400°C. The pigment has reddish brown colour hue.
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Dohnalová, Ž., Šulcová, P. & Trojan, M. Preparation and selected properties of pigments on base of Ln-doped CaSnO3 . J Therm Anal Calorim 93, 857–861 (2008). https://doi.org/10.1007/s10973-008-9305-7
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DOI: https://doi.org/10.1007/s10973-008-9305-7