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KMID : 0385520120250010003
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Analytical Science & Technology
2012 Volume.25 No. 1 p.3 ~ p.6
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Influence analysis of heat treatment on crystalline structure of ZrO2-SiO2 glass precursor synthesized by sol-gel method
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Chun Kyung-Soo
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Abstract
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xZrO2-(1-x)SiO2 glass precursor with relatively high concentration of zirconium propoxide in metal alkoxide solution was obtained by sol-gel method and then heated at various temperature from 500 to 1,100oC to investigate the effect of the thermal treatment on the crystalline structure of the glass precursor. Based on X-ray diffraction analysis, the crystalline peak was started to develop at temperature higher than 600oC, and the crystalline phase was considerably increased at 850 oC or higher. With increasing the thermal treatment temperature, the characteristic peaks, such as baddelyite, tetragonal-ZrO2 and zircon, was shown at 35o, 50o and 60o of 2θ.
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KEYWORD
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sol-gel method, ZrO2-SiO2, glass precursor, heat treatment, crystalline structure
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