Composition, Structure and Properties of PZT-BT Ceramics Prepared by Two-Stage Sintering

Abstract:

Ceramic solid solutions within the system (1-x)PZT-xBT, where x = 0.1, 0.2, 0.3, 0.4 and 0.5, were prepared by conventional mixed-oxide method combined with a two-stage sintering procedure. A sintering time of 2 h at 1000 °C followed by a second step in the temperature range of 1000-1200 °C for 2 h was employed to all samples and compared to the one-step sintering process. Phase formation, densification and microstructure of all ceramics were examined via X-ray diffraction (XRD), Archimedes method and scanning electron microscope (SEM). The results lead to the conclusion that the pure perovskite phase and high densification of (1-x)PZT-xBT ceramics with fine grain can be successfully achieved under suitable two-stage sintering conditions.

• Periodical: Key Engineering Materials (Volumes 421-422)
• Pages: 436-439
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.421-422.436
• Online since: December 2009
• Authors: Wanwilai C. Vittayakorn, Rattikorn Yimnirun, Supon Ananta
• Keywords: BT, PZT, Sintering

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