期刊
JOURNAL OF ELECTRONIC MATERIALS
卷 40, 期 11, 页码 2228-2233出版社
SPRINGER
DOI: 10.1007/s11664-011-1724-8
关键词
Piezoelectric materials; dielectrics; PIN-PMN-PT; linear array
资金
- Ministry of Science and Technology of China [2008AA03Z410, 2009CB623305]
- Natural Science Foundation of China [60837003, 50777065]
- Science and Technology Commission of Shanghai Municipality [0520712700, 10JC1415900]
- Shanghai Institute of Ceramics [O99ZC4140G, O99ZC1110G]
In this work, the dielectric and beam-mode piezoelectric properties of ternary 0.35Pb(In1/2Nb1/2)O-3-0.35Pb(Mg1/3Nb2/3)O-3-0.30PbTiO(3) (PIMNT35/35/30) piezoelectric single crystals were investigated. The Curie temperature (T (C)) and rhombohedral-to-tetragonal phase-transition temperature (T (rt)) are 187A degrees C and 127A degrees C, about 30A degrees C higher than those of PMNT crystals. The beam-mode coupling coefficient k (33) (w) was found to be 90.3%. Furthermore, 3.5-MHz linear arrays based on PIMNT35/35/30 crystals and Pb(Zr1-x Ti (x) )O-3 ceramic (PZT-5H) were simulated using PiezoCAD software. The results indicate that the sensitivity and -6 dB bandwidth of a PIMNT35/35/30 transducer would be approximately 4 dB and 20% higher, respectively, compared with a traditional PZT transducer.
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