| K2O·CaO·P2O5계 유리의 열적특성과 구조분석 |
| 윤영진, 윤태민, 이용수, 강원호 |
| 단국대학교 신소재공학과 |
| A Study of Structure and Thermal Properties of K2O·CaO·P2O5 Glasses |
| Young-Jin Yoon, Tae-Min Yoon, Yong-Soo Lee, Won-Ho Kang |
| Department New Material Science and Engineering, Dankook University |
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| ABSTRACT |
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Various composition of $K_2O{cdot}CaO{cdot}P_2O_5$ glasses were studied by melting process to identify glass forming region. Thermal properties were observed by DSC and TG-DTA, structural properties were investigated by FT-IR and Raman Spectroscopy. The glass transition temperature (Tg) and softening temperature (Ts) were decreased with increasing $K_2O;and;P_2O_5$ contents. The basic structural unit of phosphate glasses is the $PO_2;and;PO_4^{3-}$ groups to make a cross-link and P-O-P group to form skeleton structure. As CaO content was increased, the P-O-P field strength in these glass was increased and intensity of $PO_2;and;PO_4^{3-}$ stretch was decreased. ᆘﾖ⨀ ਆ ጊ攀 Ѐ㘱〻Ԁ䭃䑎䷍ 6ㄵ⸸㤻Ԁ䭃䑎䴀 |
| Key words:
Phosphate glasses, Structure, ECO-glass |
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