Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5440429 | Journal of the European Ceramic Society | 2017 | 7 Pages |
Abstract
A parallel preparation method was developed using dry powders as starting materials to synthesize multi-compositional microwave dielectric ceramics. The Li2O-Nb2O5-TiO2 ternary system was investigated as a model material. The validity of the parallel ceramic preparation process was confirmed by synthesizing a group of LiNb0.6Ti0.5O3 ceramics in parallel, which showed the same crystalline structure and close dielectric properties. The ceramic libraries with M-phase-rich samples and Li2TiO3-rich samples were prepared using the parallel process, and the microwave dielectric properties and crystal phases were investigated systematically. An excellent microwave ceramic with a composition of 0.55Li2O-0.05Nb2O5-0.40TiO2 was obtained, which has a dielectric constant of 18.4 and a high quality value (QÂ ÃÂ f) of 79000Â GHz. This parallel process can be applied extensively to explore a variety of bulk ceramic libraries for discovering new functional materials with high performances.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jian Chang, Zhifu Liu, Mingsheng Ma, Yongxiang Li,