Sol-gel synthesis of erbium-doped yttrium silicate glass-ceramics |
| |
Authors: | Varadharajan Ranganathan |
| |
Affiliation: | Rutgers University, Materials Science and Engineering, 607 Taylor Road, Piscataway, NJ 08854, United States |
| |
Abstract: | Yttrium silicate glasses and glass-ceramics were prepared by the sol-gel process. Yttrium nitrate was added to tetraethyl orthosilicate in amounts representing between 0.2 and 20 mol%, as well as amounts corresponding to the disilicate composition. Some samples were doped with erbium acetate. The solutions underwent gellation in 2-7 days and were dried for 2 weeks. Differential thermal analysis was used to design a multi-step heat treatment to 1000 °C to densify samples to transparent or translucent monoliths. Above 1000 °C, samples crystallized to yttrium disilicate and cristobalite. Phase separation before crystallization influenced the formation of the crystal phases. |
| |
Keywords: | 78.55.Qr 81.20.Pw |
本文献已被 ScienceDirect 等数据库收录! |
|