Preparation of Persisted Luminescence Pigment and Investigation in Glaze Compatibility

In this paper, preparation of SrAl2O4:Eu,Dy luminescent pigment has been investigated. Coprecipitation as a low cost and facile method was selected. X-ray diffraction patterns indicated the formation of SrAl2O4 phase through calcinations process above 800 °C. Moreover, adding a few amount of silica to rawmaterials caused the structural transformation to Aluminosilicate phase during the calcination. Transparent glaze which consist of a few amount of luminescent pigment was obtained at 600° C under different atmosphere conditions. The photoluminescence properties of luminescence glaze revealed that the firing atmosphere has significant effect on luminescence features of glaze. Although, the luminescence decay of glaze was completely eliminated in oxide atmosphere, but the green afterglow of obtained sample was remained in argon atmosphere. Prog. Color Colorants Coat. 5(2012), 55-63. © Institute for Color Science and Technology.