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Synthesis and dielectric properties of HCa2Nb3O10 layered structure ceramics
- Issue Date
- 2013
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Dielectric properties; Niobates; Capacitors
- Citation
- CERAMICS INTERNATIONAL, v.39, pp.S611 - S614
- Indexed
- SCIE
SCOPUS
- Journal Title
- CERAMICS INTERNATIONAL
- Volume
- 39
- Start Page
- S611
- End Page
- S614
- ISSN
- 0272-8842
- Abstract
- We studied the structural and dielectric properties of KCa2Nb3O10 (KCNO) and HCa2Nb3O10 (HCNO) ceramics. HCNO ceramics were synthesized from KCNO powders with layered perovskite structure by chemical ion-exchange method at room temperature. After exchanging K+ with H+, the layered perovskite structure was retained in HCNO as well. Although the dielectric constant of KCNO altered with increase in frequency, HCNO showed a constant relative dielectric permittivity (epsilon(r)) of around 23.5 and a low dielectric loss (tan delta) of 0.009 at a range of frequencies. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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