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Transactions of the INDIAN CERAMIC SOCIETY   Vol. 45  1986
Ceramic Pigments and Enamels through Solution Route: Zircon-Based Inorganic Pigments through Sol-Gel Technique
S. CHAKRABARTI AND A. PAUL
Pages : 7-13
DOI : 10.1080/0371750X.1986.10822770
Abstract
The sol-gel method has been used to synthesise zircon-based pigments having Pr, V, Ni, Cr, Fe and Cu ions as dopants and glass enamels close to the commercial composition of 27Pb0.51Si02.8B,03.SLi,O. While these products compared reasonably v. ith the corresponding products obtained through conventional sintering and melting, they are yet to be further developed to meet desirable t)ualities. The sol-+ gel--+glass transitions have been studied spectroscopically for samples containing transition metals and the absocption spectra explained in the light of ligand field theory. The temperature of zircon formation and the extent of transformation to zircon were found to be influenced by the nature of dopants and such zircon pigments were found to have very high chemical durability. The gel derived glass enamels did not show any sign of crystallisation and adhered well on sheet glass substrate when fired at 600C for 10 minutes.
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