Fabrication of modified lead titanate piezoceramics with zero temperature coefficient and its application on SAW devices

Sheng Yuan Chu, Te Yi Chen

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

The Samarium-modified, lead titanate ceramics with a composition of (Pb0.67Ca0.15Sr0.06Sm0.08) (Ti 0.98Mn0.02)O3 were prepared by conventional mixed-oxide method. By properly varying the sintering and poling conditions, the samples with zero temperature coefficient of resonant frequency were fabricated. The piezoelectric and dielectric properties were measured; it showed that the samples with zero temperature coefficient still keep high-thickness, electromechanical coupling coefficient, kt(>0.55), and small planar electromechanical coupling coefficient, kp. Surface acoustic wave (SAW) filters were fabricated; and the properties, including phase velocity and electromechanical coupling coefficient, were measured. Microstructural and compositional analyses have been carried out using scanning electron microscopy and x-ray diffraction.

原文English
頁(從 - 到)663-667
頁數5
期刊IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
51
發行號6
DOIs
出版狀態Published - 2004 6月

All Science Journal Classification (ASJC) codes

  • 儀器
  • 聲學與超音波
  • 電氣與電子工程

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