Microstructure and dielectric properties of BST ceramics derived from high-energy ball-milling

被引：35

作者：

Liu, Cheng ^{[1
]}

Liu, Peng ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710062, Shaanxi, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 584卷

基金：

中国国家自然科学基金;

关键词：

BST; High-energy ball-milling; Microstructure; Dielectric properties; Ceramics; METAL-OXIDES; COMPOSITES; FERROELECTRICS; IMPROVEMENT; TITANATE; POWDERS;

D O I：

10.1016/j.jallcom.2013.09.031

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ba0.6Sr0.4TiO3 (BST) ceramics were prepared via a High-energy ball-milling (HEBM) method. Its sintering temperature and grain size were effectively reduced. Better temperature stability and decreased dielectric constant were obtained due to the refined grains, but the tunability was not deteriorated heavily. In addition, the dielectric loss of the HEBM samples kept at the same level with the traditional coarse-grained ceramics, lower than the nano-grained specimens prepared by chemical routes. The formation of BaWO4 phase had no "bad'' effects on the dielectric performance of BST, indicating that HEBM was an effective way in preparing temperature-stable BST ceramics at a lower sintering temperature for tunable applications. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：114 / 118

页数：5

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