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Ternary Pb(Yb1/2Nb1/2)O3-PbZrO 3-PbTiO3 system as high-TC/high-piezoelectric materials

科研成果: 期刊稿件会议文章同行评审

31 引用 (Scopus)

摘要

In order to search for high-TC materials with excellent piezoelectric properties, we have investigated the ternary system of (1-x-y)Pb(Yb1/2Nb1/2)O3-xPbZrO 3-yPbTiO3 (PYN-PZ-PT). The phase diagram around the ternary morphotropic phase boundary (MPB) has been determined. For the ceramic of composition near the MPB, 0.33Pb(Yb1/2Nb1/2)O 3-0.23PbZrO3-0.44PbTiO3, a high ferroelectric Curie temperature of TC=370°C, a very large bipolar strain of 0.4% (peak to peak) at E = ±20kV/cm, a high d33 value of 1247pC/N (E≤20kV/cm) measured from the unipolar dependence of strain, and a remnant polarization (Pr) of 25μC/cm3 are obtained. This performance indicates that this ternary system form promising materials for high-temperature electromechanical transducer applications.

源语言英语
页(从-至)1443-1448
页数6
期刊Ceramics International
30
7
DOI
出版状态已出版 - 2004
已对外发布
活动3rd Asian Meeting on Electroceramics - Singapore, 新加坡
期限: 7 12月 200311 12月 2003

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