Microwave dielectric properties of Ca[(Li1/3Nb 2/3)1-x Tix]O3-δ ceramics with glass

Jong Yoon Ha, Ji Won Choi, Chong Yun Kang, Seok Jin Yoon, Doo Jin Choi, Hyun Jai Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The effect of the addition of glass on the densification, low temperature sintering, and microwave dielectric properties of the Ca[(Li 1/3Nb2/3)1-x Tix]O 3-δ(CLNT) was investigated. Addition of glass (B 2O3-ZnO-SiO2-PbO system) improved the densification and reduced the sintering temperature from 1150°C to 900°C of Ca[(Li1/3Nb2/3)1-x -Tix]O 3-δ microwave dielectric ceramics. As increasing glass contents from 10 wt% to 15 wt%, the dielectric constants (εr) and bulk density were increased. The quality factor (Q•f0), however, was decreased slightly. The temperature coefficients of the resonant frequency (τf) shifted positive value as increasing glass contents over Ti content is 0.2 mol. The dielectric properties of Ca[(Li1/3Nb 2/3)0.75Ti0.25]O3-δ with 10 wt% glass sintered at 900°C for 3 h were εr = 40 Q•f0 = 11500 GHz, τf = 8, ppm/°C. The relationship between the microstructure and dielectric properties of ceramics was studied by X-ray diffraction (XRD), and scanning electron microscope (SEM).

Original languageEnglish
Pages (from-to)399-403
Number of pages5
JournalJournal of Electroceramics
Volume17
Issue number2-4
DOIs
Publication statusPublished - 2006 Dec 1
Externally publishedYes

Fingerprint

Dielectric properties
dielectric properties
Microwaves
ceramics
microwaves
Glass
glass
densification
Densification
sintering
Sintering
Temperature
resonant frequencies
Q factors
Natural frequencies
Permittivity
Electron microscopes
electron microscopes
permittivity
Scanning

Keywords

  • Addition of glass
  • Dielectric
  • LTCC
  • Microwave

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Ha, J. Y., Choi, J. W., Kang, C. Y., Yoon, S. J., Choi, D. J., & Kim, H. J. (2006). Microwave dielectric properties of Ca[(Li1/3Nb 2/3)1-x Tix]O3-δ ceramics with glass. Journal of Electroceramics, 17(2-4), 399-403. https://doi.org/10.1007/s10832-006-9638-1

Microwave dielectric properties of Ca[(Li1/3Nb 2/3)1-x Tix]O3-δ ceramics with glass. / Ha, Jong Yoon; Choi, Ji Won; Kang, Chong Yun; Yoon, Seok Jin; Choi, Doo Jin; Kim, Hyun Jai.

In: Journal of Electroceramics, Vol. 17, No. 2-4, 01.12.2006, p. 399-403.

Research output: Contribution to journalArticle

Ha, Jong Yoon ; Choi, Ji Won ; Kang, Chong Yun ; Yoon, Seok Jin ; Choi, Doo Jin ; Kim, Hyun Jai. / Microwave dielectric properties of Ca[(Li1/3Nb 2/3)1-x Tix]O3-δ ceramics with glass. In: Journal of Electroceramics. 2006 ; Vol. 17, No. 2-4. pp. 399-403.
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