Comparative study between conventional and microwave sintered lead-free BNKT ceramics

Pin Yi Chen*, Chen Chia Chou, Tseung-Yuen Tseng, Haydn Chen

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations


Lead free [(1-x)Bi0.5Na0.5TiO3-(x)Bi0.5K0.5TiO3] ceramics with x = 0.18 were prepared by using microwave sintering technique. XRD of these ceramics show co-existence of tetragonal and rhombohedral phases. Smaller grain size and more uniform microstructure were observed in microwave sintered sample. It might result from different diffusion mechanism. The activation energy of grain growth was calculated. The results display in microwave sintered sample is lower (167kJ/mol) than that for conventional one (260kJ/mol). It implies microwave sintered sample just need lower energy for densification. The remanent polarization and piezoelectric constants of microwave sintered samples are higher than that of conventional sintered samples. Relation among processing kinetics, microstructural characteristics and electrical properties was discussed.

Original languageEnglish
Pages (from-to)196-200
Number of pages5
Issue number1 PART 2
StatePublished - 1 Dec 2009
Event6th Asian Meeting on Ferroelectrics, AMF-6 - Taipei, Taiwan
Duration: 2 Aug 20086 Aug 2008


  • Ferroelectric
  • Lead-free
  • Microwave sintering
  • Piezoelectric


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