Two-step Synthesis of Platelike Potassium Sodium Niobate Template Particles by Hydrothermal Method

被引：24

作者：

Bai, Shan ^{[1
]}

Karaki, Tomoaki ^{[1
]}

机构：

[1] Toyama Prefectural Univ, Dept Intelligent Syst Design Engn, Fac Engn, Imizu, Toyama 9390398, Japan

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2013年 / 96卷 / 08期

关键词：

KNBO3;

D O I：

10.1111/jace.12345

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Two-step hydrothermal synthesis of platelike potassium sodium niobate (K, Na)NbO3 (KNN) template particles was investigated. Platelike K4Na4Nb6O19 center dot 9H(2)O (KNN-hydrate) particles were synthesized in 4 mol/L aqueous alkali at 150 degrees C by the sodium dodecyl benzene sulfonate (SDBS) surfactant-assisted hydrothermal method, which were used as crystal nucleus in the second step of hydrothermal synthesis. The two-step synthesized KNN-hydrate particles with 0.6 mu m thickness and 7 mu m width were prepared at 80 degrees C after 10 h of the second step. After calcination of the KNN-hydrate particle at 600 degrees C, platelike KNN particles were obtained, which were used as templates for textured ceramics. Particles obtained by the two-step synthesis showed regular morphology and uniform distribution, with a marked improvement in grain size.

引用

页码：2515 / 2518

页数：4

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