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
Externally publishedYes

Keywords

  • Addition of glass
  • Dielectric
  • LTCC
  • Microwave

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Microwave dielectric properties of Ca[(Li<sub>1/3</sub>Nb <sub>2/3</sub>)<sub>1-x</sub> Ti<sub>x</sub>]O<sub>3-δ</sub> ceramics with glass'. Together they form a unique fingerprint.

  • 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