Abstract
Crystallization behavior of BaO-Ln2O3-TeO2 glasses (Ln = La, Pr, Sm, Eu, Er) was examined to prepare transparent crystallized glasses consisting of lanthanide tellurite crystals (Te4+ crystalline compounds) with low phonon energies. Transparent crystallized glasses with fluorite-type Ln2Te6O15 or Ln2Te5O13 nanocrystals (∼50 nm sizes) were successfully prepared for the first time. The crystallization mechanism depends strongly on the lanthanide species: surface crystallization (∼15 μm) is dominant in La3+ and Pr3+ containing glasses, but homogeneous nucleation occurs easily in Sm3+, Eu3+ and Er3+ containing glasses, giving transparent bulk crystallized glasses. These transparent nano-crystallized glasses are applicable to fabrication of optical amplified waveguides or Bragg grating fibers.
Original language | English |
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Pages (from-to) | 466-469 |
Number of pages | 4 |
Journal | Journal of the Ceramic Society of Japan |
Volume | 109 |
Issue number | 1269 |
DOIs | |
Publication status | Published - May 2001 |
Externally published | Yes |
Keywords
- Lanthanide tellurite
- Nanocrystal
- Tellurite glass
- Transparent crystallized glass
ASJC Scopus subject areas
- Ceramics and Composites
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry