| Single Ion Exchange Process에 의한 LCD용 기판유리의 강화 |
| 이회관, 오영석, 이용수, 강원호 |
| 단국대학교 신소재공학과 |
| Strengthening of Substrate Glass for LCD by Single ton Exchange Process |
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| ABSTRACT |
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To produce a strengthened glass, single ion exchange properties such as three-point bend strength and residual stress were investigated in soda-lime-silicate substrate glass for display use. The present work showed that the maximum value of strength was 62.5${times}$10$sub$6/ kg/㎡ after, the two-step single ion exchange process at 470$^{circ}C$ for 1 h and 450$^{circ}C$ for 24 h. As the result of the fracture analysis after bending test, the residual stress on the fractured surface of the strengthened glass increased the flexibility by means of absorbing the elastic deformation energy in the glass. Also, the effects of absorbing the elastic deformation energy were analysed by curvature change, number of multiple crack branches and brittleness. |
| Key words:
Single ion exchange, Chemical strengthening, 3-piont bending test, Fractography |
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