barium titanate Archives | The American Ceramic Society

barium titanate

Acoustic detection method may identify early cracks in ceramic capacitors and beyond

By April Gocha / March 24, 2016

Researchers at the National Institute of Standards and Technology may be on to something that can help with better monitoring of ceramic capacitors—they have devised a new nondestructive method that may be able to detect cracks in materials before they lead to device failure.

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Breakthrough in understanding piezoelectric mechanism in Pb-free ferroelectrics

By Eileen De Guire / September 11, 2012

Applying a poling field (Epol) creates a rhombohedral (R)/tetragonal (T) morphotropic phase boundary in a single phase grain of (Bi½Na½)TiO3-6%BaTiO3. Such direct in-situ transmission electron microscopy observations led to the establishment of an Epol vs x phase diagram for (1-x)(Bi½Na½)TiO3–xBaTiO3. Credit: Tan; Iowa State University. Lead zirconate titanate ceramics are the “gold standard” materials for…

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Does fast-firing of multilayer ceramic capacitors help or hinder?

By Eileen De Guire / October 13, 2011

3D microstructure of a typical MLCC slow-fired conditions (top) and fast-fired conditions. Credit: JACerS The Clive Randall group at Penn State has just published a paper, “Effect of Firing Rates on Electrode Morphology and Electrical Properties of Multilayer Ceramic Capacitors” in the Journal of the American Ceramic Society and available via the Early View option.…

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Spectroscopic Assessments of Domain Texture in Barium Titanate: I. Confocal Raman Polarization Analysis

By / January 27, 2010

Volume 93 Issue 1, Pages 256 – 264 Giuseppe Pezzotti, Atsuo Matsutani, Wenliang ZhuPublished Online: Oct 14 2009 11:42AM DOI: 10.1111/j.1551-2916.2009.03340.x ABSTRACT A three-dimensional quantitative Raman analysis of ferroelectric domain orientation is presented for single-crystalline barium titanate (BaTiO3; BT). The analysis has been developed according to basic principles of polarized/confocal Raman spectroscopy and is aimed…

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