TY - JOUR
T1 - Molten salt synthesis of anisometric KSr2Nb5O 15 particles
AU - Zhao, Lili
AU - Gao, Feng
AU - Zhang, Changsong
AU - Zhao, Ming
AU - Tian, Changsheng
PY - 2005/4/1
Y1 - 2005/4/1
N2 - Anisometric KSr2Nb5O15 (KSN) particles were synthesized in both the KCl-SrNb2O6 system (System I) and the KCl-SrCO3-Nb2O5 system (System II). Reaction mechanisms in the two systems are proposed, respectively. In System I, pure KSN particles could not be synthesized. KSN particles, which exhibited a stepwise morphology, were always contaminated by the impurity of Sr 2Nb2O7. In contrast, pure KSN particles were successfully synthesized in System II by controlling the ratio of SrCO 3/Nb2O5 and the amount of KCl salt, which had higher aspect ratio and were more uniform in size relative to those formed in System I. The pure KSN particles were of a perfect morphology and 10-40 μm in length×1-2 μm in diameter. The growth mechanism of KSN particles was interpreted as two-dimensional nucleation.
AB - Anisometric KSr2Nb5O15 (KSN) particles were synthesized in both the KCl-SrNb2O6 system (System I) and the KCl-SrCO3-Nb2O5 system (System II). Reaction mechanisms in the two systems are proposed, respectively. In System I, pure KSN particles could not be synthesized. KSN particles, which exhibited a stepwise morphology, were always contaminated by the impurity of Sr 2Nb2O7. In contrast, pure KSN particles were successfully synthesized in System II by controlling the ratio of SrCO 3/Nb2O5 and the amount of KCl salt, which had higher aspect ratio and were more uniform in size relative to those formed in System I. The pure KSN particles were of a perfect morphology and 10-40 μm in length×1-2 μm in diameter. The growth mechanism of KSN particles was interpreted as two-dimensional nucleation.
KW - A1. Crystal morphology
KW - A1. Nucleation
KW - A1. X-ray diffraction
KW - A2. Single crystal growth
KW - B1. Niobates
KW - B2. Ferroelectric materials
UR - http://www.scopus.com/inward/record.url?scp=15344339897&partnerID=8YFLogxK
U2 - 10.1016/j.jcrysgro.2004.11.388
DO - 10.1016/j.jcrysgro.2004.11.388
M3 - 文章
AN - SCOPUS:15344339897
SN - 0022-0248
VL - 276
SP - 446
EP - 452
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 3-4
ER -