Microwave dielectric properties of Ca[(Li1/3Nb2/3)1-xMx]O3-δ (M = Sn, Ti) ceramics

Ji Won Choi, Chong-Yun Kang, Seok Jin Yoon, Hyun Jai Kim, Hyung Jin Jung, Ki Hyun Yoon

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Abstract

The microwave dielectric properties of Ca[(Li1/3Nb2/3)1-xMx]O3-δ(M = Sn, Ti, 0≤x≤0.5) ceramics were investigated. In general, the ceramics prepared were multiphase materials. However, single-phase specimens having orthorhombic perovskite structure similar to CaTiO3 could be obtained in the vicinity of Sn = 0.2 to 0.3, and Ti = 0.2. As Sn concentration increased, the dielectric constant (εr) decreased and the quality factor (Q) significantly increased within the limited Sn concentration. As Ti concentration increased, the dielectric constant (εr) increased, the quality factor (Q) decreased, and the temperature coefficient of resonant frequency (τf) changed from a negative to positive value. The temperature coefficient of resonant frequency of 0 ppm/°C was realized at Ti = 0.2. The Q·fo value and εr for this composition were found to be 26100 GHz and 38.6, respectively.

Original languageEnglish
Pages (from-to)3567-3570
Number of pages4
JournalJournal of Materials Research
Volume14
Issue number9
Publication statusPublished - 1999 Sep 1

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Dielectric properties
dielectric properties
Natural frequencies
Permittivity
Microwaves
ceramics
microwaves
resonant frequencies
Q factors
Perovskite
permittivity
coefficients
Temperature
Chemical analysis
temperature
perovskite

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Choi, J. W., Kang, C-Y., Yoon, S. J., Kim, H. J., Jung, H. J., & Yoon, K. H. (1999). Microwave dielectric properties of Ca[(Li1/3Nb2/3)1-xMx]O3-δ (M = Sn, Ti) ceramics. Journal of Materials Research, 14(9), 3567-3570.

Microwave dielectric properties of Ca[(Li1/3Nb2/3)1-xMx]O3-δ (M = Sn, Ti) ceramics. / Choi, Ji Won; Kang, Chong-Yun; Yoon, Seok Jin; Kim, Hyun Jai; Jung, Hyung Jin; Yoon, Ki Hyun.

In: Journal of Materials Research, Vol. 14, No. 9, 01.09.1999, p. 3567-3570.

Research output: Contribution to journalArticle

Choi, JW, Kang, C-Y, Yoon, SJ, Kim, HJ, Jung, HJ & Yoon, KH 1999, 'Microwave dielectric properties of Ca[(Li1/3Nb2/3)1-xMx]O3-δ (M = Sn, Ti) ceramics', Journal of Materials Research, vol. 14, no. 9, pp. 3567-3570.
Choi JW, Kang C-Y, Yoon SJ, Kim HJ, Jung HJ, Yoon KH. Microwave dielectric properties of Ca[(Li1/3Nb2/3)1-xMx]O3-δ (M = Sn, Ti) ceramics. Journal of Materials Research. 1999 Sep 1;14(9):3567-3570.
Choi, Ji Won ; Kang, Chong-Yun ; Yoon, Seok Jin ; Kim, Hyun Jai ; Jung, Hyung Jin ; Yoon, Ki Hyun. / Microwave dielectric properties of Ca[(Li1/3Nb2/3)1-xMx]O3-δ (M = Sn, Ti) ceramics. In: Journal of Materials Research. 1999 ; Vol. 14, No. 9. pp. 3567-3570.
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