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Low‐Temperature Sintering and Piezoelectric Properties of 0.6Pb(Zr 0.47 Ti 0.5 3)O 3 ·0.4Pb(Zn 1/3 Nb 2/ 3)O 3 Ceramics
Author(s) -
Seo SeungBeom,
Lee SeungHo,
Yoon ChangBun,
Park GunTae,
Kim HyounEe
Publication year - 2004
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2004.tb20095.x
Subject(s) - materials science , sintering , lead zirconate titanate , piezoelectricity , dielectric , ceramic , piezoelectric coefficient , zirconate , titanate , composite material , mineralogy , analytical chemistry (journal) , ferroelectricity , chemistry , chromatography , optoelectronics
The sintering behavior and piezoelectric properties of the lead zirconate titanate (Pb(ZrTi)O 3 , PZT)–lead zinc niobate (Pb(Zn 1/3 Nb 2/3 )O 3 , PZN) system were investigated. The sintering temperature required for full densification of the PZT‐PZN system was significantly lowered when the proportion of PZN was increased. The density of the specimen composed of 60% PZT and 40% PZN (0.6PZT‐0.4PZN, Pb((Zr 0.47 Ti 0.53 ) 0.6 –(Zn 1/3 Nb 2/3 ) 0.4 )O 3 ) sintered at 880°C for 4 h was 8.15 g/cm 3 , which was >97% of the theoretical value. This improved densification behavior was attributed to the combined effects of the high sinterability of PZN and the stability of the PZT pcrovskite structure. The piezoelectric and dielectric properties of the 0.6PZT‐0.4PZN specimen sintered at 880°C were comparable with those of a specimen with the same composition sintered at 1200°C for 2 h. The piezoelectric coefficient ( d 33 ) and the electromechanical coupling factor ( k p ) of the 0.6PZT‐0.4PZN specimen sintered at 880°C were 460 pC/N and 0.6, respectively.