Characterizations of (Mn, Sb) co-tuned PZMNS-PZT piezoelectric ceramics in the morphotropic phase boundary and their applications on multi-bulk step-down piezoelectric transformers

Cheng Che Tsai, Hsiang Ho Hsieh, Sheng Yuan Chu, Zong You Chen, S. K. Huang

研究成果: Conference contribution

摘要

In this study, the (Mn, Sb) co-tuned PbCa0.01[(MnxZn0.1-x)1/3(SbxNb0.1-x)2/3 (Zr0.505Ti0.4895)0.9]O3 (PCZMNSZT-100x) ceramics were prepared near the morphotropic phase boundary (MPB) using the wolframite precursor method. The phase structure evolutions, electrical and temperature stability properties were systematically investigated. As the fraction of rhombohedral phase increases, the degree of disorder in the diffused phase transition (DPT) correspondingly increased and the "hard" piezoelectric characterization would be enhanced. Moreover, the temperature change rate of k, Qm and fr can be tuned by adjusting the x content. The specimens with x=0.08 exhibit the obtained values as kp ∼ 0.50, kt ∼ 0.52, Qm ∼ 1550, and the low temperature change rate of properties having Δfr/fr =-0.02% and ΔQm/Qm = 10.5%, up to 100 °C. To evaluate the material feasibility, the proposed multi-bulk step-down transformers using a ring/dot structure are fabricated. Their obtained electrical properties have a maximum efficiency of 92% with an output power of 15 W, a voltage gain of 0.68 and a nearly zero temperature change rate of resonant frequency are found at the load of 100 Ω.

原文English
主出版物標題Proceedings of the International Congress on Ceramics V
編輯Hong Lin, Jianghong Gong
發行者Trans Tech Publications Ltd
頁面147-152
頁數6
ISBN(列印)9783038354895
DOIs
出版狀態Published - 2015 一月 1
事件5th International Congress on Ceramics, ICC 2014 - Beijing, China
持續時間: 2014 八月 172014 八月 21

出版系列

名字Key Engineering Materials
655
ISSN(列印)1013-9826
ISSN(電子)1662-9795

Other

Other5th International Congress on Ceramics, ICC 2014
國家China
城市Beijing
期間14-08-1714-08-21

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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