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- Title
Role of B″ Ion (B″ = Nb, Ta) on perovskite development, lattice parameters and dielectric properties of (Ba,Pb)(Zn<sub>1/3</sub>B″<sub>2/3</sub>)O<sub>3</sub> ceramics.
- Authors
Ahn, Byung-Yong; Kim, Nam-Kyoung
- Abstract
Ceramic powders of Pb(Zn1/3B″2/3)O3 (where B″ is Nb or Ta ions) complex-perovskite compositions, with gradual replacements of Pb by Ba, were prepared by using a B-site precursor method. Phases developed in both systems were identified by X-ray diffraction and perovskite contents were evaluated as a function of the amount of Ba substitution. Variations of lattice parameters of the pyrochlore and perovskite structures with composition modifications are interpreted in terms of the 6- and 12-fold cation sizes. Weak-field dielectric properties of the two systems in the low-frequency range are compared.
- Subjects
CERAMIC powders; X-ray diffractometers; LATTICE dynamics; DIELECTRICS; PEROVSKITE
- Publication
Journal of Materials Science, 2002, Vol 37, Issue 21, p4697
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1023/A:1020629222680