Nanocrystalline BaTiO3 powder via a sol process ambient conditions

被引：27

作者：

Wang, Xinyu

Lee, Burtrand I. ^{[1
]}

Hu, Michael

Payzant, E. Andrew

Blom, Douglas A.

机构：

[1] Clemson Univ, Sch Mat Sci & Engn, Clemson, SC 29634 USA

[2] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2006年 / 26卷 / 12期

基金：

美国国家科学基金会;

关键词：

sol-gel processes; powder-chemical preparation; BaTiO3; titanates;

D O I：

10.1016/j.jeurceramsoc.2005.04.002

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：

Nanocrystalline BaTiO3, particles have been prepared by ambient condition sol (ACS) process starting from soluble precursors of barium and titanium yielding a mixed oxide/hydroxide gel. The gel was peptized and crystallized in water under a refluxing condition. Higher initial pH and Ba/Ti ratio led to smaller crystallite sizes of BaTiO3 powders. Organic mineralizer, tetramethylammonium hydroxide (TMAH), can adsorb on the BaTiO3 nuclei and inhibited further growth of the particles. Adding a polymer during BaTiO3 synthesis led to a smaller particle size and increased redispersibility of the particles in water. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2319 / 2326

页数：8

共 59 条

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