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http://dx.doi.org/10.6111/JKCGCT.2019.29.4.154

The properties of glass ceramic of LAS system with Y2O3 and Fe2O3  

Lee, Ji-Sun (Optic & Electric Components Materials Center, Korea Institute of Ceramic Engineering and Technology)
Lim, Tae-Young (Optic & Electric Components Materials Center, Korea Institute of Ceramic Engineering and Technology)
Hwang, Jonghee (Optic & Electric Components Materials Center, Korea Institute of Ceramic Engineering and Technology)
Lee, Youngjin (Optic & Electric Components Materials Center, Korea Institute of Ceramic Engineering and Technology)
Jeon, Dae-Woo (Optic & Electric Components Materials Center, Korea Institute of Ceramic Engineering and Technology)
Kim, Sun-Woog (Optic & Electric Components Materials Center, Korea Institute of Ceramic Engineering and Technology)
Ra, Yong-Ho (Optic & Electric Components Materials Center, Korea Institute of Ceramic Engineering and Technology)
Kim, Jin-Ho (Optic & Electric Components Materials Center, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.29, no.4, 2019 , pp. 154-159 More about this Journal
Abstract
The glass-ceramic of $Li_2O-Al_2O_3-SiO_2$ system was fabricated by using yttrium oxide and iron oxide that it can reduce the melting temperature and affect the homogenization. Zirconium sulfate was used as a nucleation agent. Calcium phosphate was used to improve the flow the glass so as reduce the viscosity of the glass. The glass-ceramics met a thermal shock test of more than $750^{\circ}C$ and the temperature at which the coefficient of thermal expansion rapidly increased at over $800^{\circ}C$ was shifted by about the above $30^{\circ}C$. Therefore, it is concluded that the glass-ceramic of $Li_2O-Al_2O_3-SiO_2$ system with yttrium oxide and iron oxide was founded to have good melting conditions and excellent thermal expansion resistance at high temperature such as special field for kitchen utensils.
Keywords
Glass-ceramic; Crystallization; Yttrium oxide; Iron oxide; TMA;
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Times Cited By KSCI : 2  (Citation Analysis)
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