Microwave dielectric properties of B2O3-added Li2MgTiO4 ceramics for LTCC applications

Chih Yi Liu*, Ming Hsui Tsai, Mengh Sin Wu, Chun Hung Lai

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

4 Scopus citations


Li2MgTiO4 (LMT) ceramics which are synthesized using a conventional solid-state reaction route. The LMT ceramic sintered at 1250°C for 4 h had good microwave dielectric properties. However, this sintering temperature is too high to meet the requirement of low-temperature co-fired ceramics (LTCC). In this study, the effects of B2O3 additives and sintering temperature on the microstructure and microwave dielectric properties of LMT ceramics were investigated. The B2O3 additive forms a liquid phase during sintering, which decreases the sintering temperature from 1250°C to 925°C. The LMT ceramic with 8 wt% B2O3 sintered at 925°C for 4 h was found to exhibit optimum microwave dielectric properties: dielectric constant 15.16, quality factor 64,164 GHz, and temperature coefficient of resonant frequency -28.07 ppm/°C. Moreover, co-firing of the LMT ceramic with 8 wt% B2O3 and 20 wt% Ag powder demonstrated good chemical compatibility. Therefore, the LMT ceramics with 8 wt% B2O3 sintered at 925°C for 4 h is suitable for LTCC applications.

Original languageEnglish
Pages (from-to)25-35
Number of pages11
JournalIntegrated Ferroelectrics
Issue number1
StatePublished - 02 01 2016
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2016 Taylor & Francis Group, LLC.


  • BO
  • LiMgTiO
  • additive
  • ceramics
  • microwave dielectric


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