| 학회 |
한국재료학회 |
| 학술대회 |
2007년 봄 (05/10 ~ 05/11, 무주리조트) |
| 권호 |
13권 1호 |
| 발표분야 |
구조재료 |
| 제목 |
Effect of Sm3+dopant on laser induced crystallization of Li2O/Al2O3/SiO2 glass system |
| 초록 |
RE (Rare-earth) ions including Sm3+ were usually used as a dopant inducing heat-process in the glass by laser irradiation. In this work, Li2O–Al2O3–SiO2 (LAS) glass doped Sm3+ (0~10mol %) was irradiated by Nd:YAG laser with 1064nm wave length. The crystalline phases induced by laser irradiation were confirmed as β-eucryptite(Li2O-Al2O3-2SiO2) and β-spodumene (Li2O-Al2O3-4SiO2). Each degree of crystallinity was compared, increasing the proportion of Sm3+ ion up to 10 mol %. The size of crystal induced by laser irradiation was observed by scanning electron microscope (SEM). Glass stability (ΔT=Tg-Tx) which is main factor in crystallization of glass was calculated by using Differential Thermal Analysis (DTA) by increasing the proportion of Sm3+. The decrease of glass transmittance by crystallization was measured by Uv-Vis spectrometer. |
| 저자 |
이규호, 정영준, 김태호, 김영석, 류봉기
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| 소속 |
부산대 |
| 키워드 |
Nd:YAG laser; crystallization; LAS glass-ceramics; samarium
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| E-Mail |
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