Synthesis of (K, Na)NbO3 particles by high temperature mixing method under hydrothermal conditions

被引:25
作者
Bai, Lin [1 ]
Zhu, Kongjun [1 ]
Su, Likui [1 ]
Qiu, Jinhao [1 ]
Ji, Hongli [1 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, Aeronaut Key Lab Smart Mat & Struct, Nanjing 210016, Peoples R China
关键词
(Na; K)NbO3; HTMM; Piezoelectric materials; Perovskites;
D O I
10.1016/j.matlet.2009.10.013
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In order to prepare the pure (K, Na)NbO3(KNN) particles with higher crystallinity. the high temperature mixing method (HTMM) under hydrothermal conditions was carried out in this work The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and high-resolution transmission electron microscopy (HRTEM). The results indicate that the KNN particles size decrease gradually with the increase of mineralization concentration in the starting solution. The ratio of K+/(K+ + Na+) in the starting solution has a great effect on the phase of the products, and several phases coexist in the product when the ratio of K+/(K+ + Na+) in the starting solution is 0.7. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:77 / 79
页数:3
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