Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1530854 | Materials Science and Engineering: B | 2008 | 5 Pages |
Abstract
Non-isothermal crystallization process of ferroelectric-based BaTi2O5 glass (BTO-glass) is investigated by in situ Raman scattering. The gradual change of Raman spectra clearly shows the successive crystallization of BTO-glass through metastable α and β phases. The increase of volume fractions obtained from the development of spectral intensities is analyzed by the Johnson–Mehl–Avrami formula. The results indicate homogeneous crystallization of α phase and subsequent inhomogeneous crystallization of β phase. Finally specially resolved observation reveals the phase separation of β phase on the surface and BaTi2O5 crystal phase in the inside.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Hiroki Taniguchi, Jianding Yu, Yasutomo Arai, Desheng Fu, Toshirou Yagi, Mitsuru Itoh,