Environmental-friendly yellow pigment based on Tb and M (M=Ca or Ba) co-doped Y2O3

A yellow inorganic ceramic pigment with general formula Y1.86−xMxTb0.14O3−x/2 (M=Ca and/or Zn) with x=0.06, 0.32 and 0.64 were synthesized by a modified Pechini method. XRD, SEM and HRTEM/EDX analysis showed the formation of solid solution at 1300°C when x=0.06 and 0.32. The best b* yellow coordinat...

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Vydáno v:Journal of the European Ceramic Society Ročník 33; číslo 15-16; s. 3359 - 3368
Hlavní autoři: De la Luz, Verónica, Prades, Marta, Beltrán, Héctor, Cordoncillo, Eloisa
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier Ltd 01.12.2013
Témata:
Ceramic yellow pigment
Ceramics
Color
Colour
Environmental friendly
Glazes
Glazing
Lanthanide
Pechini method
Pigments
Solid solutions
Yttrium oxide
Zinc
Lanthanide
Yttrium oxide
Ceramic yellow pigment
Pechini method
Environmental friendly
ISSN:0955-2219, 1873-619X
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Shrnutí:A yellow inorganic ceramic pigment with general formula Y1.86−xMxTb0.14O3−x/2 (M=Ca and/or Zn) with x=0.06, 0.32 and 0.64 were synthesized by a modified Pechini method. XRD, SEM and HRTEM/EDX analysis showed the formation of solid solution at 1300°C when x=0.06 and 0.32. The best b* yellow coordinates were obtained for Ca and Zn co-doped Y1.86Tb0.14O3 samples. The intensity of the yellow colour in the samples is related to the presence of Tb4+ ions. Samples with higher concentration of Tb4+ ions lead to a better yellow colour. The chemical stability of these pigments was determinate in an industrial glaze. The glazing tests indicated that the powder samples with x=0.06 and 0.32 fired at 1300°C were stable in the glaze. These results make it a potential candidate for environmental friendly yellow ceramic pigment to be used in applications such as pigment for glazes or inkjet printers.
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ISSN:0955-2219
1873-619X
DOI:10.1016/j.jeurceramsoc.2013.05.021