| 학회 |
한국화학공학회 |
| 학술대회 |
2006년 가을 (10/27 ~ 10/28, 고려대학교) |
| 권호 |
12권 2호, p.2524 |
| 발표분야 |
재료 |
| 제목 |
Crystallization of KNaNbTeO6 in K2O-Na2O-Nb2O5-TeO2 glasses |
| 초록 |
Tellurium oxide based glasses are of scientific and technical interest on account of their low melting temperatures, high refractive indices, high dielectric constant and good infrared transmissions, and thus recently have been considered as promising materials for the applications in optical fibers or nonlinear optical devices. Recently, we succeeded in fabricating transparent glass-ceramics from the system TeO2 based glass-ceramics and discovered that the crystallized glasses show a second harmonic generation. Although K2O-Na2O-Nb2O5-TeO2 glass-ceramics has widely studied for the second-order nonlinear optical phenomenon and structure, the crystallization of the KNa[Nb1/3Te2/3]2O4.8 phase from precursor sample has not been investigated. In the present study, formation kinetics and crystallization behaviors of KNa[Nb1/3Te2/3]2O4.8 in K2O-Na2O-Nb2O5-TeO2 glasses were investigated using X-ray diffraction patterns and differential thermal analysis. The activation energies for crystallization of KNa[Nb1/3Te2/3]2O4.8 were obtained from these data. |
| 저자 |
김현규1, 정의덕1, 김혜진1, 하명규1, 박혁규1, 이재성2
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| 소속 |
1한국기초과학지원(연), 2포항공과대 |
| 키워드 |
결정화 |
| E-Mail |
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| 원문파일 |
초록 보기 |
