| Effect of Curing Temperature on Surface Characteristics
of TiO2-Fe2O3 Multi Oxide Thin Film Deposited
over Glazed Ceramic Wall Tiles |
Asha Anil*, Indranil Payra1 and Satyendra Nath Misra
pages : 221-227
DOI : 10.1080/0371750X.2014.896225 |
| Abstract |
| The effects of curing temperature on surface characteristics of TiO2-Fe2O3 multi-oxide thin film coated glazed wall
tile were studied. The thin film was developed by sol-gel method using spin coating technique and subsequently
cured at 600o, 700o and 800oC by fast firing. DTA/TG of the gel as well as XRD of the calcined gel powder was carried
out. The surface characteristics of the thin film were characterized using optical microscopy, FESEM-EDX and
gloss meter. The mineral hardness test and stain resistance test were also carried out. The results indicated that
the surface characteristics of the thin film coated glazed wall tile changed with the increasing curing temperature.
The FESEM investigation showed that density of the film and interface reaction between glaze and thin film increased
with higher curing temperatures. Furthermore, increasing curing temperature of thin film coated substrate resulted
in significant improvement in gloss and hardness of the coated surface. Thus, this study exhibits the potential
application of TiO2-Fe2O3 thin film coating on the glaze not only as decorative coating but also for improving
surface characteristics of glazed wall tiles.
[Keywords: TiO2-Fe2O3 thin film coatings, Glazed wall tiles, Microstructure, Surface characteristics] |
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