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- Title
Phase structure and dielectric property of the ZnNbO-(MgZn)TiO multiphase ceramics.
- Authors
Liu, Xiang; Deng, Jun
- Abstract
ZnNbO and (ZnMg)TiO multiphase ceramics were prepared by conventional mixed-oxide method combined. The phase structure, structure morphology and dielectric properties of multiphase ceramics were investigated. The results show that ZnNbO accelerates the decomposition of the hexagonal phase (ZnMg)TiO and a structural transition of columbite ZnNbO and rutile to ixiolite ZnTiNbO occurs. ZnNbO-(ZnMg)TiO ceramics have uniform morphology, the grain size becomes smaller with the ZnNbO content increasing. ZnTiNbO phase and the uniform morphology improve the properties of ceramics, 0.6ZnNbO-0.4(MgZn)TiO and 0.8ZnNbO-0.2(MgZn)TiO ceramics sintered at 1,000 °C have the best dielectric properties: ε = 25.6-26.5, tan δ = 2.9-5.7 × 10. Due to their good dielectric properties, ZNMT3 and ZNMT4 ceramics can serve as the promising microwave dielectric capacitor.
- Subjects
CHEMICAL structure; ZINC compounds; CERAMICS; DIELECTRICS; MORPHOLOGY
- Publication
Journal of Materials Science: Materials in Electronics, 2012, Vol 23, Issue 2, p506
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-011-0427-5