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Detailed Program
| Paper Number : GL-P04 |
| Time Frame : 12:00~13:30 |
| Presentation Date : Thursday, 27, November |
| Session Name : Glass & Opto-Electronic Materials |
| Session Chair 1# : - |
| Session Chair 2# : - |
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| Micro-crack Healing on Glass Using Chemically Strengthening |
| Mr. Dong-Hwan Kim |
| KOREA INSTITUTE OF CERAMIC ENGINEERING & TECHNOLOGY |
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| We studied whether the chemically strengthening could heal the flaw on soda-lime silicate glass. The artificial surface cracks were introduced in the glass by sharp indentation with various loads at 2, 10 and 20N. Then the glasses with flaws were treated by ion-exchanging in KNO3 melt. The dimensional change of the crack on glass was measured by digital microscope and scanning electron microscope. After treatment, the strength of glass with flaw was enhanced. Chemical strengthening by ion-exchange made the glass surface to develop the compressive stress, which could induce the crack healing effect at crack tip region. The strength was maintained constant until 18 ¥ìm size of crack. However, when glass had the crack with over 30 ¥ìm, the crack healing effect was rapidly decreased. |
| Acknowledgements : |
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