Synthesis of Co-Doped Tialite Ceramic Pigments and Coloring in Glazes

Yeon Ju Kim; Kyong Sop Han; Byung Ha Lee

doi:10.4028/www.scientific.net/MSF.695.299

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HomeMaterials Science ForumMaterials Science Forum Vol. 695Synthesis of Co-Doped Tialite Ceramic Pigments and...

Synthesis of Co-Doped Tialite Ceramic Pigments and Coloring in Glazes

Abstract:

Synthesis of gray ceramic pigment was carried out by doping cobalt on Tialite crystal structure. Tialite was synthesized by using Al₂O₃ and TiO₂, and was doped with Co₃O₄ as a chromophore material. To prevent the thermal decomposition during cooling procedure Fe₂O₃ was added by 0.05mole as a stabilizer. Samples were fired at 1400~1500°C for 2hours and cooled naturally. Crystal structure, solubility limit and color of synthesized pigment were analyzed by XRD, Raman spectroscopy, UV and UV-vis. Yield percentage of Tialite was 96.15% with using Fe₂O₃ as a stabilizer. It was found that solubility limit of Co2+ in Tialite crystal was 0.03 mole% through analysis of XRD and Raman. By adding pigment with 0.03 mole% of Co2+ to lime-barium glaze, stabilized Dark Gray color glaze having 46.12, -1.26, 0.53 as CIE-L^*a^*b^* was synthesized.

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Periodical:

Materials Science Forum (Volume 695)

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299-302

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https://doi.org/10.4028/www.scientific.net/MSF.695.299

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Online since:

July 2011

Authors:

Yeon Ju Kim, Kyong Sop Han, Byung Ha Lee

Keywords:

Cobalt, Gray, Pseudobrookite, Stabilizer, Tialite

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