| 학회 |
한국재료학회 |
| 학술대회 |
2016년 가을 (11/16 ~ 11/18, 경주 현대호텔) |
| 권호 |
22권 2호 |
| 발표분야 |
F. 광기능/디스플레이 재료 분과 |
| 제목 |
Surface Morphology and Optical Properties of Glass, Manufactured by Hybrid Etching Process |
| 초록 |
Surface morphology and optical properties such as transmittance and haze effect of the etched glass by hybrid etching processes were characterized. Hybrid etching process was performed by two step etching methods orderly. Primarily sand blasting process was carried as physical etching, and the secondly chemical etching process was applied using the HF based etchant. Sand blasting was conducted in terms of distance between gun nozzle and the glass substrate, applied air pressure and sanding speed. The chemical etching process was achieved by using BOE(Buffered Oxide Etch) based solution prepared by combination of the BOE, HCl and distilled water. The microstructure of the surface after sand blasting process displays the pits like very sharp and their size were nonuniform. While the distribution of pits was pretty uniform. Those irregularly shaped and sharp pits were transferred to smooth micro-spherical type pits as experiencing chemical etching process. Further, the smooth micro-spherical pits expand the size as increasing etching time. Finally the curvature of the widen spherical pits were decreased and the numbers of the spherical pits were reduced. The size and curvature of the spherical pits affects the haze and transmittance of the etched glass. The high haze value and low transmittance of the sand blasted glass were changed into low haze value and upgraded transmittance. The continually spreading spherical pits as reducing their curvature and number were responsible for the low haze value and maintaining sound transmittance. The transmittance of the chemically etched glass was increased as increasing etching time until 60 min. and then, the high haze value displayed decreasing tendency after etching of 60 min. The ideal haze value range of 3∼7% could be achieved from 4∼12 hrs etching period on the selected concentration of chemical etchant. While the transmittance value was constantly maintained without eminent change. |
| 저자 |
Namhyuk Kim, Jeongil Sohn, Gwangsoo Kim
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| 소속 |
순천향대 |
| 키워드 |
<P>Glass; Surface morphology; Hybrid etching; Sand blasting; Chemical etching; Haze; Micro-spherical etch pit</P>
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| E-Mail |
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