TY - JOUR
T1 - High-temperature fluxing salt of LiNbO3 single-crystal by potassium meta-phosphate solvent
AU - Zhang, De-Long
AU - Du, Wen-Jie
AU - Gao, Jian
AU - Hua, Ping-Rang
AU - Yu, Zhi-Wu
AU - Yu, Dao-Yin
AU - Yue-Bun Pun, Edwin
PY - 2013/12/16
Y1 - 2013/12/16
N2 - We report that potassium meta-phosphate (KPO3) is an adequate solvent for high-temperature fluxing salt of LiNbO3 crystal. As the KPO3 is used as the solvent, the solubility of LiNbO3 is as high as 3 g g-1 at 1050 C. The dissolving is fast. Neither solute nor solvent evaporates from the melt during the dissolving procedure. A clear solution is obtained and verified valid for crystal composition analysis using chemical method of inductively coupled plasma atomic emission spectroscopy. To help for understanding the dissolving mechanism, the obtained fluxing melt product was further characterized using X-ray diffraction, nuclear magnetic resonance and Raman scattering spectroscopy. The results show that the melt is amorphous. The P ion in the melt is in the form of low condensation and the Nb ion is likely in the form of Lindqvist ion. Finally, the dissolving mechanism is discussed. © 2013 Elsevier B.V. All rights reserved.
AB - We report that potassium meta-phosphate (KPO3) is an adequate solvent for high-temperature fluxing salt of LiNbO3 crystal. As the KPO3 is used as the solvent, the solubility of LiNbO3 is as high as 3 g g-1 at 1050 C. The dissolving is fast. Neither solute nor solvent evaporates from the melt during the dissolving procedure. A clear solution is obtained and verified valid for crystal composition analysis using chemical method of inductively coupled plasma atomic emission spectroscopy. To help for understanding the dissolving mechanism, the obtained fluxing melt product was further characterized using X-ray diffraction, nuclear magnetic resonance and Raman scattering spectroscopy. The results show that the melt is amorphous. The P ion in the melt is in the form of low condensation and the Nb ion is likely in the form of Lindqvist ion. Finally, the dissolving mechanism is discussed. © 2013 Elsevier B.V. All rights reserved.
KW - Chemical synthesis
KW - Nuclear magnetic resonance (NMR)
KW - Optical materials
KW - Powder diffraction
KW - Raman spectroscopy and scattering
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U2 - 10.1016/j.matchemphys.2013.09.024
DO - 10.1016/j.matchemphys.2013.09.024
M3 - RGC 21 - Publication in refereed journal
SN - 0254-0584
VL - 143
SP - 434
EP - 439
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
IS - 1
ER -