Microwave dielectric properties of (1-x)Cu3Nb2O8-xZn3Nb2O 8 ceramics

Dong-Wan Kim, In Tae Kim, Byungwoo Park, Kug Sun Hong, Jong Hee Kim

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The sintering behavior and microwave dielectric properties of (1-x)Cu3Nb2O8-xZn3Nb2O 8 have been investigated using dilatometry, x-ray diffraction, and a network analyzer. It was found that (1-x)Cu3Nb2O8-xZn3Nb2O 8 ceramics have a much lower melting temperature than Zn3Nb2O8 ceramics without Cu3Nb2O8 additives. Samples sintered at 900 °C for 2 h exhibited densities >97% of the theoretical density. Cu3Nb2O8 acts as a sintering aid. Two phase regions were identified with increasing Zn3Nb2O8 contents. A Cu3Nb2O8-Zn3Nb2O8 solid solution exists from 0 < x < 0.5 while a mixture of Cu3Nb2O8 and Zn3Nb2O8 exists from 0.5 < x < 1. The microwave dielectric properties correlated to the crystal structure. In Cu3Nb2O8-Zn3Nb2O8 solid solution region, the variation of dielectric properties could be explained by the structure distortion of Cu3Nb2O8 due to electronic anisotropies of Cu2+ cations.

Original languageEnglish
Pages (from-to)1465-1470
Number of pages6
JournalJournal of Materials Research
Volume16
Issue number5
Publication statusPublished - 2001 May 1
Externally publishedYes

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Dielectric properties
dielectric properties
Microwaves
ceramics
microwaves
Solid solutions
sintering
solid solutions
Sintering
dilatometry
Electric network analyzers
Melting point
Cations
analyzers
Anisotropy
x ray diffraction
Diffraction
Crystal structure
Positive ions
melting

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Kim, D-W., Kim, I. T., Park, B., Hong, K. S., & Kim, J. H. (2001). Microwave dielectric properties of (1-x)Cu3Nb2O8-xZn3Nb2O 8 ceramics. Journal of Materials Research, 16(5), 1465-1470.

Microwave dielectric properties of (1-x)Cu3Nb2O8-xZn3Nb2O 8 ceramics. / Kim, Dong-Wan; Kim, In Tae; Park, Byungwoo; Hong, Kug Sun; Kim, Jong Hee.

In: Journal of Materials Research, Vol. 16, No. 5, 01.05.2001, p. 1465-1470.

Research output: Contribution to journalArticle

Kim, D-W, Kim, IT, Park, B, Hong, KS & Kim, JH 2001, 'Microwave dielectric properties of (1-x)Cu3Nb2O8-xZn3Nb2O 8 ceramics', Journal of Materials Research, vol. 16, no. 5, pp. 1465-1470.
Kim, Dong-Wan ; Kim, In Tae ; Park, Byungwoo ; Hong, Kug Sun ; Kim, Jong Hee. / Microwave dielectric properties of (1-x)Cu3Nb2O8-xZn3Nb2O 8 ceramics. In: Journal of Materials Research. 2001 ; Vol. 16, No. 5. pp. 1465-1470.
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