Low-temperature sintering and microwave dielectric properties of BaO·(Nd1-xBix)2O 3·4TiO2 by the glass additions

In Sun Cho, Dong-Wan Kim, Jeong Ryeol Kim, Kug Sun Hong

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

The system BaO·(Nd1-xBix)2O 3·4TiO2 solid solution containing lithium borosilicate glass were prepared and examined as a low-temperature co-fired ceramics (LTCC). The sintering properties of the low-temperature sintered BaO·(Nd1-xBix)2O 3·4TiO2 with glass frit were investigated using dilatometer, SEM and TEM. The microwave dielectric properties were measured using a network analyzer. The addition of glass to BaO·(Nd 1-xBix)2O3·4TiO2 significantly lowered the sintering temperature to ∼900°C in comparison to ∼1300°C for samples without glass. The formation of liquid phase present in the low temperature sintered sample was confirmed using TEM. It was found that thermal properties of the added lithium borosilicate glass dominated the sintering properties of BaO·(Nd1-xBix) 2O3·4TiO2 including shrinkage onset temperature and shrinkage rate. The sample of BaO·(Nd 0.8Bi0.2)2O3·4TiO 2 with 10wt.% glass sintered at 900°C exhibited a quality factor (Q×f) of 2200GHz, a εr of 68, and a τf of 55ppm/°C.

Original languageEnglish
Pages (from-to)1181-1185
Number of pages5
JournalCeramics International
Volume30
Issue number7
DOIs
Publication statusPublished - 2004 Sep 7
Externally publishedYes

Fingerprint

Dielectric properties
Sintering
Microwaves
Glass
Borosilicate glass
Lithium
Temperature
Transmission electron microscopy
Dilatometers
Electric network analyzers
Solid solutions
Thermodynamic properties
Scanning electron microscopy
Liquids

Keywords

  • A. Sintering
  • C. Dielectric properties
  • D. Glass ceramics
  • LTCC

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Low-temperature sintering and microwave dielectric properties of BaO·(Nd1-xBix)2O 3·4TiO2 by the glass additions. / Cho, In Sun; Kim, Dong-Wan; Kim, Jeong Ryeol; Hong, Kug Sun.

In: Ceramics International, Vol. 30, No. 7, 07.09.2004, p. 1181-1185.

Research output: Contribution to journalArticle

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