Synthesis and dielectric properties of HCa2Nb3O 10 layered structure ceramics

Haena Yim; So Yeon Yoo; Sahn Nahm; Seong Ju Hwang; Seok Jin Yoon; Ji Won Choi

doi:10.1016/j.ceramint.2012.10.146

Synthesis and dielectric properties of HCa₂Nb₃O ₁₀ layered structure ceramics

Haena Yim, So Yeon Yoo, Sahn Nahm, Seong Ju Hwang, Seok Jin Yoon, Ji Won Choi

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We studied the structural and dielectric properties of KCa ₂Nb₃O₁₀ (KCNO) and HCa₂Nb ₃O₁₀ (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 (ε_r) of around 23.5 and a low dielectric loss (tan δ) of 0.009 at a range of frequencies.

Original language	English
Pages (from-to)	S611-S614
Journal	Ceramics International
Volume	39
Issue number	SUPPL.1
DOIs	https://doi.org/10.1016/j.ceramint.2012.10.146
Publication status	Published - 2013 May

Keywords

C. Dielectric properties
D. Niobates
E. Capacitors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.ceramint.2012.10.146

Cite this

@article{e1fe2726243e410c9c1585e276d7164a,

title = "Synthesis and dielectric properties of HCa2Nb3O 10 layered structure ceramics",

abstract = "We studied the structural and dielectric properties of KCa 2Nb3O10 (KCNO) and HCa2Nb 3O10 (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 (εr) of around 23.5 and a low dielectric loss (tan δ) of 0.009 at a range of frequencies.",

keywords = "C. Dielectric properties, D. Niobates, E. Capacitors",

author = "Haena Yim and Yoo, {So Yeon} and Sahn Nahm and Hwang, {Seong Ju} and Yoon, {Seok Jin} and Choi, {Ji Won}",

note = "Funding Information: This study was supported by the Core Technology of Materials Research and Development Program (no. 10041232 ) funded by the Ministry of Knowledge Economy, Republic of Korea.",

year = "2013",

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doi = "10.1016/j.ceramint.2012.10.146",

language = "English",

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TY - JOUR

T1 - Synthesis and dielectric properties of HCa2Nb3O 10 layered structure ceramics

AU - Yim, Haena

AU - Yoo, So Yeon

AU - Nahm, Sahn

AU - Hwang, Seong Ju

AU - Yoon, Seok Jin

AU - Choi, Ji Won

N1 - Funding Information: This study was supported by the Core Technology of Materials Research and Development Program (no. 10041232 ) funded by the Ministry of Knowledge Economy, Republic of Korea.

PY - 2013/5

Y1 - 2013/5

N2 - We studied the structural and dielectric properties of KCa 2Nb3O10 (KCNO) and HCa2Nb 3O10 (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 (εr) of around 23.5 and a low dielectric loss (tan δ) of 0.009 at a range of frequencies.

AB - We studied the structural and dielectric properties of KCa 2Nb3O10 (KCNO) and HCa2Nb 3O10 (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 (εr) of around 23.5 and a low dielectric loss (tan δ) of 0.009 at a range of frequencies.

KW - C. Dielectric properties

KW - D. Niobates

KW - E. Capacitors

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DO - 10.1016/j.ceramint.2012.10.146

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JO - Ceramics International

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