Sol-gel-hydrothermal synthesis and sintering of K0.5Bi0.5TiO3 nanowires

被引：42

作者：

Hou, Lei ^{[1
]}

Hou, Yu-Dong ^{[1
]}

Song, Xue-Mei ^{[1
]}

Zhu, Man-Kang ^{[1
]}

Wang, Hao ^{[1
]}

Yan, Hui ^{[1
]}

机构：

[1] Beijing Univ Technol, Dept Mat Sci & Engn, China Educ Minist, Key Lab Adv Funct Mat, Beijing 100022, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2006年 / 41卷 / 07期

基金：

中国国家自然科学基金;

关键词：

ceramics; chemical synthesis; X-ray diffraction; dielectric properties;

D O I：

10.1016/j.materresbull.2005.12.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The sol-gel-hydrothermal processing of K0.5Bi0.5TiO3 (KBT) nanowires as well as their sintering behavior at 1000-1100 degrees C were investigated. The morphological analyses indicated that sol-gel-hydrothermal route led to the formation of KBT nanowires with diameters of 4 nm and lengths of 100 nm at low processing temperature of 200 degrees C with KOH concentration of 6 M. It is believed that the gel precursor and hydrothermal environment play an important role in the formation of the nanowires. The KBT ceramics with a relative density of more than 95% can be successfully fabricated from the high quality KBT nanowires even by a conventional sintering process. The KBT ceramics sintered at 1050 degrees C showed typical characteristics of relaxor ferroelectrics, and the dielectric properties were better than that prepared by all other methods reported previously. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1330 / 1336

页数：7

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