TY - GEN
T1 - Crystallization and raman spectra of langasite-type Na2CaGe 6O14, Na2SrGe6O14 and Pb3Ga2Ge4O14 in corresponding glasses
AU - Takahashi, Yoshihiro
AU - Fujiwara, Takumi
AU - Benino, Yasuhiko
AU - Komatsu, Takayuki
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2010
Y1 - 2010
N2 - We investigated the crystallization behavior of langasite-type phases in the stoichiometric corresponding glasses, i.e., Na2CaGe 6O14, Na2SrGe6O14 and Pb3Ga2Ge4O14. The langasite-type phases singly were formed by heat-treatment in the glasses. Raman spectroscopy revealed the structural similarity on the scale of short-/medium-range order between the langasite-type phases and the corresponding glasses. Furthermore, we also examined the temperature dependence of second-harmonic (SH) intensity of the langasite-type phases. The SH-temperature curves exhibited an anomalous behavior, implying a structural change, e.g., isomorphous phase transition.
AB - We investigated the crystallization behavior of langasite-type phases in the stoichiometric corresponding glasses, i.e., Na2CaGe 6O14, Na2SrGe6O14 and Pb3Ga2Ge4O14. The langasite-type phases singly were formed by heat-treatment in the glasses. Raman spectroscopy revealed the structural similarity on the scale of short-/medium-range order between the langasite-type phases and the corresponding glasses. Furthermore, we also examined the temperature dependence of second-harmonic (SH) intensity of the langasite-type phases. The SH-temperature curves exhibited an anomalous behavior, implying a structural change, e.g., isomorphous phase transition.
KW - Crystallization
KW - Glass
KW - Langasite-type phase
KW - Raman spectroscopy
KW - Second-harmonic generation
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U2 - 10.4028/www.scientific.net/KEM.421-422.213
DO - 10.4028/www.scientific.net/KEM.421-422.213
M3 - Conference contribution
AN - SCOPUS:75749130282
SN - 0878493069
SN - 9780878493067
T3 - Key Engineering Materials
SP - 213
EP - 216
BT - Asian Ceramic Science for Electronics III and Electroceramics in Japan XII
PB - Trans Tech Publications Ltd
T2 - 6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan
Y2 - 22 October 2008 through 24 October 2008
ER -