We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Crossover of Ba(Ti,Y)O<sub>3</sub> Solid Solutions to Ba<sub>3</sub>Ti<sub>2</sub>YO<sub>8.5</sub>–BaTiO<sub>3</sub> Composites and their Dielectric Properties.
- Authors
Jing Zhi; Zhi Yu; Chen Ang
- Abstract
Ceramic samples with the nominal composition (1− x) BaTiO3+ x Ba3Ti2YO8.5 ( x=0−0.535) were prepared by the mixed oxide method. X-ray diffraction (XRD) analysis shows that the materials are of single phase with a cubic symmetry as x≤0.16. The compositions of the solid solutions ( x≤0.16) can be expressed equivalently as Ba(Ti1− yY y)O3−δ ( y≤0.122, y= x/(1+2 x)). For x>0.16, the materials are diphasic composites consisting of Ba(Ti1− yY y)O3 ( y=0.122) and Ba3Ti2YO8.5. The microstructure observation by scanning electron microscopy supports the XRD result. The dielectric behavior and phase transitions of the solid solutions ( x≤0.16) vary with different Y concentrations. The dielectric constant of the composites ( x>0.16) follows approximately the Lichteneker relation in a wide temperature range.
- Subjects
CERAMICS; THIN films; DIELECTRIC films; SOLID state electronics; THIN films in electrical insulation; DIELECTRICS; ELECTRICAL engineering materials
- Publication
Journal of the American Ceramic Society, 2005, Vol 88, Issue 10, p2775
- ISSN
0002-7820
- Publication type
Article
- DOI
10.1111/j.1551-2916.2005.00501.x