Preparation of persisted luminescence pigment and investigation of in glaze compatibility

Journal: Vol.5, No.2, Spring 2012 - Article 1   Pages :   Until 

Article Code:

Mahdi Ghahari: Institute for Color Science and Technology - Department of Nanomaterials and Nanocoatings
Amir masoud Arabi: Institute for Color Science and Technology - Department of Nanomaterials and Nanocoatings

Article's abstract:

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:Eu,Dy phase through calcinations process above 800 °C. Moreover, a few amount of silica caused the structural transformation to alumina silicate phase. 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 vital effect on luminescence features of coating 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.

Luminescent glaze, Phosphor, SrAl2O4: Eu, Dy, Coprecipitation.

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Prof. Zahra Ranjbar
Dr. Farahnaz Nourmohammadian
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Dr. Mozhgan Hosseinnezhad
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Institute for Color Science and Technology (ICST)

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