Dielectric and electromechanical properties of barium titanate single crystals grown by templated grain growth

Paul W. Ruhrig, Susan Trolier-McKinstry, Semig Eek Park, Gary L. Meaaing

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Single crystals of BaTiO3 were grown by templatcd grain growth (TGG). TGG involves contacting a single crystal "template" to a sintered polycrystalline matrix, then heating the assemblage to a temperature that promotes the migration of the single crystal boundary through the matrix. In this investigation the properties of millimetor-sized, plate-ahaped and bar-shaped, single crystals of BaTiOu grown by TGG were examined in order to compare the results to single crystals grown by conventional methods. A dielectric constant, , of 260, polarizations of PLI ∼ 16 μC/cm2 and Psat ∼ 21.5 μC/cm2, electromechanical coupling coefficients of kaa ∼ 0.51 and fcni ∼ 0.1.8, and a piezoelectric coefficient of das ∼ 140 pC/N wore achieved. Kntrappccl porosity in the crystals made fully poling the crystals difficult.

Original languageEnglish (US)
Pages (from-to)895-902
Number of pages8
JournalIEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume47
Issue number4
DOIs
StatePublished - Jul 2000

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Dielectric and electromechanical properties of barium titanate single crystals grown by templated grain growth'. Together they form a unique fingerprint.

  • Cite this