The phase transformations and coloring mechanisms that occur during the ceramic processing of titania slag were investigated using XRF-EDS, XRD, DRS and lab.-scale application in glazed and unglazed tiles. The slag transforms to pseudobrookite, undergoing a drastic color change during firing as a consequence of thermal oxidn. with Fe2+ to Fe3+ and Ti3+ to Ti4+ reactions. The intense brown color imparted by titania slag is stable at both low (up to 1050 C) and high (around 1200 C) temps. and is suitable for porcelain stoneware tiles. In through-body application, titania slag enables spotting' effects to be achieved.
Titania slag as a ceramic pigment
CRUCIANI, Giuseppe;
2008
Abstract
The phase transformations and coloring mechanisms that occur during the ceramic processing of titania slag were investigated using XRF-EDS, XRD, DRS and lab.-scale application in glazed and unglazed tiles. The slag transforms to pseudobrookite, undergoing a drastic color change during firing as a consequence of thermal oxidn. with Fe2+ to Fe3+ and Ti3+ to Ti4+ reactions. The intense brown color imparted by titania slag is stable at both low (up to 1050 C) and high (around 1200 C) temps. and is suitable for porcelain stoneware tiles. In through-body application, titania slag enables spotting' effects to be achieved.File in questo prodotto:
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