Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499049 | Scripta Materialia | 2013 | 4 Pages |
Abstract
(1 − x)Ba0.5Sr0.5TiO3 (BST)–xMg2TiO4 (MT) composite ceramics have been prepared in situ by a sol–gel process. Their effective dielectric response has been addressed theoretically in terms of the compound law and the modified effective medium approximation, coupled with the spherical inclusion model. Results show that the permittivity of BST in the composite is strongly dependent on the MT volume fraction (fMT), whether under an electric field or not. Also, the percolation transition behavior of tunability occurs when fMT ⩾ 0.5.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jingji Zhang, Bo Shen, Jiwei Zhai, Xi Yao,