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首页> 外文期刊>Materials Science and Engineering. B, Solid-State Materials for Advanced Technology >Fabrication and electrical characteristics of piezoelectric PMN-PZN-PZT ceramic transformers
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Fabrication and electrical characteristics of piezoelectric PMN-PZN-PZT ceramic transformers

机译：压电PMN-PZN-PZT陶瓷变压器的制造和电气特性

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摘要

For the fabrication as piezoelectric transformers, the density, microstructure, dielectric and piezoelectric properties of Pb(Mg_(1/3)Nb_(2/3)) O_3-Pb(Zn_(1/3)Nb_(2/3))O_3-Pb(Zr_(0.52)Ti_(0.48))O_3 (PMN-PZN-PZT) ceramics as a function of calcining temperature and sintering temperature were investigated. In addition, the piezoelectric transformers with the composition of PMN-PZN-PZT were fabricated and the characteristics with various resistance loads were measured. The results indicated that the optimized properties of ceramics were obtained at calcining temperature of 800℃ and sintering temperature of 1020℃, which were listed as follows: d_(33) = 249 pC/N, K_p = 0.57, Q_m = 1954, ε_r = 1122 and tan δ = 0.0059. Meanwhile, piezoelectric transformers sintered at 1020℃ show the favorable characteristics with a higher step-up ratio of 145 and a lower temperature rise of 5℃ at 250 kΩ.
机译：作为压电变压器的制造，Pb（Mg_（1/3）Nb_（2/3））O_3-Pb（Zn_（1 / 3Nb_（2/3））O_3的密度，微观结构，介电和压电性能研究了-Pb（Zr_（0.52）Ti_（0.48））O_3（PMN-PZN-PZT）陶瓷作为煅烧温度和烧结温度的函数。此外，制造了具有PMN-PZN-PZT组成的压电变压器，并测量了各种电阻负载下的特性。结果表明，在800℃的煅烧温度和1020℃的烧结温度下获得了最佳的陶瓷性能，分别为：d_（33）= 249 pC / N，K_p = 0.57，Q_m = 1954，ε_r= 1122，tanδ= 0.0059。同时，在1020℃烧结的压电变压器表现出良好的特性，在250kΩ时具有较高的145的升压比和较低的5℃的温升。

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