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首页> 外文期刊>Journal of Materials Science >THE INFLUENCE OF THE MORPHOTROPIC PHASE BOUNDARY ON THE DIELECTRIC AND PIEZOELECTRIC PROPERTIES OF THE PNN-PZ-PT TERNARY SYSTEM
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THE INFLUENCE OF THE MORPHOTROPIC PHASE BOUNDARY ON THE DIELECTRIC AND PIEZOELECTRIC PROPERTIES OF THE PNN-PZ-PT TERNARY SYSTEM

机译：晶相相界对PNN-PZ-PT三元体系介电和压电性能的影响

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摘要

The influence of the morphotropic phase boundary (MPB) on the dielectric and piezoelectric properties of PbNi1/3Nb2/3-PbZrO3-PbTiO3 (PNN-PZ-PT) ternary system were systematically investigated. The results showed that the piezoelectric constant d(31) and plane coupling factor k(p) reached a maximum in the vicinity of morphotropic phase boundary. The highest value of the piezoelectric constant d(31) was 260 x 10(-12) C/N. The Curie temperature T-c decreased rapidly with increasing content of PNN. The lattice parameters a increased and c decreased with increasing PNN content and the Zr/Zr + Ti ratio as a result of the crystal structural transformation from tetragonal to rhombohedral phases. [References: 9]
机译：系统地研究了相变相界（MPB）对PbNi1 / 3Nb2 / 3-PbZrO3-PbTiO3（PNN-PZ-PT）三元体系的介电和压电性能的影响。结果表明，压电常数d（31）和平面耦合因子k（p）在同相相界附近达到最大值。压电常数d（31）的最大值为260×10（-12）C / N。随着PNN含量的增加，居里温度T-c迅速下降。 PNN含量和Zr / Zr + Ti比的增加，使晶格参数a增加，c减少，这是晶体结构从四方相向菱面体相转变的结果。 [参考：9]

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