TY - JOUR
T1 - Transmission electron microscopy and in situ Raman studies of glassy sanbornite
T2 - An insight into nucleation trend and its relation to structural variation
AU - Takahashi, Yoshihiro
AU - Osada, Minoru
AU - Masai, Hirokazu
AU - Fujiwara, Takumi
N1 - Funding Information:
This work was supported by the Ministry of Education, Culture, Sports, Science and Technology of the Japanese Government. The crystal structures were drawn using VESTA (Ref. ). The authors would like to thank Dr. Takamichi Miyazaki of the Department of Instrumental Analysis, School of Engineering, Tohoku University, for contributing significantly to the TEM study. The authors are also grateful to Dr. Taketoshi Fujita of the National Institute for Materials Science (NIMS) for the use of the Raman spectroscopy equipment.
PY - 2010/9/15
Y1 - 2010/9/15
N2 - In situ observation of Raman scattering in glassy sanbornite (BaSi 2 O5) showing homogeneous nucleation was performed during heating to investigate the structural variation in the glassy/supercooled-liquid phase in the pre- and postnucleation regimes. It was observed that the formation of Q2 units accelerates around 400 °C, which is well below Tg, just after structural relaxation in the Ba-enriched/-cohesive region. The relation between the structural variation and the nucleation trend in glassy sanbornite was also discussed on the basis of transmission electron microscopy and in situ Raman results and previous Boson observation [Takahashi Appl. Phys. Lett. 94, 211907 (2009)].
AB - In situ observation of Raman scattering in glassy sanbornite (BaSi 2 O5) showing homogeneous nucleation was performed during heating to investigate the structural variation in the glassy/supercooled-liquid phase in the pre- and postnucleation regimes. It was observed that the formation of Q2 units accelerates around 400 °C, which is well below Tg, just after structural relaxation in the Ba-enriched/-cohesive region. The relation between the structural variation and the nucleation trend in glassy sanbornite was also discussed on the basis of transmission electron microscopy and in situ Raman results and previous Boson observation [Takahashi Appl. Phys. Lett. 94, 211907 (2009)].
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U2 - 10.1063/1.3487473
DO - 10.1063/1.3487473
M3 - Article
AN - SCOPUS:77957726076
VL - 108
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 6
M1 - 063507
ER -