Effect of calcium on the piezoelectric and dielectric properties of Sm-modified PbTiO3 ceramics

Sheng Yuan Chu, Chia Hsin Chen

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

In this effects of calcium the and dielectric of Sm-modified lead titanate ceramics paper, dopants on piezoelectric properties (PbTiO3) have been investigated. Sm-modified PbTiO3 ceramics with a composition of (Pb0.88-xCaxSm0.08) (Ti0.98Mn0.02)O3; x = 0.11-0.17 were prepared by conventional mixed-oxide methods with sintering temperature at 1200°C. We successfully showed that Ca additive is helpful to obtain much higher thickness electromechanical coupling coefficient, kt (> 0.57), than that of conventional PbTiO3 based ceramics and still keep small planar electromechanical coupling coefficient, kp. Microstructural and compositional analyses of these doped ceramics have been carded out using X-ray diffractometer (XRD) and scanning electron microscope (SEM).

Original languageEnglish
Pages (from-to)210-214
Number of pages5
JournalSensors and Actuators, A: Physical
Volume89
Issue number3
DOIs
Publication statusPublished - 2001 Apr 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

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