Journal
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 9, NO 12
Volume 9, Issue 12, Pages 2424-2427Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssc.201200313
Keywords
optical glass; Abbe number; aerodynamic levitation furnace; glass transition temperature
Funding
- Nippon Sheet Glass Foundation for Materials Science and Engineering
- Iketani Science and Technology Foundation
- Tokuyama Science Foundation
- Ministry of Education, Culture, Sports, Science and Technology of Japan [23750236, 21550185]
- Grants-in-Aid for Scientific Research [23750236, 21550185] Funding Source: KAKEN
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TiO2-based high-refractive-index glasses without any network former oxides were fabricated by containerless processing in an aerodynamic levitation furnace. The glass-forming region of a BaO-LaO3/2-TiO2 ternary system was determined. Moreover, the glass transition and crystallization temperatures of a (La1-xBax)(4)Ti9O24 glass system and a LaO3/2-TiO2-MOx ternary system (M = Ga, Y, Gd, Hf, W, Zn Ge, Nb, Ta, Bi, and Ba) were obtained. Finally, the refractive index dispersion of LaO3/2-TiO2-MOx(M = Ga, W, and Gd) was also investigated. The results indicate that these glasses are promising materials for future optical applications in the visible region. [GRAPHICS] (Left) A titanate oxide melt levitating on the nozzle by O-2 gas flow in an aerodynamic levitation furnace. (Right) A solidified spherical titanate oxide glass.(C) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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