期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 28, 期 10, 页码 1987-1994出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2007.12.035
关键词
molten salt preparation; A. firing; B. spectroscopy; C. colour; CoAl2O4
Submicronic CoAl2O4 powders were prepared by double decomposition reaction between solid LiAlO2 and molten KCoCl3 at 500 degrees C for 24 h. The reaction mechanism involves the dissolution of LiAlO2 shifted by the precipitation of CoAl2O4 until complete transformation and the reaction leads to powders with a very homogeneous chemical composition. The powders obtained were mainly characterized by XRD, FTIR, ICP, X.EDS, electron microscopy and diffraction and diffuse reflexion. The blue pigments obtained exhibit a high thermic stability allowing their use for the colouring of ceramic tiles. (c) 2008 Elsevier Ltd. All rights reserved.
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