Evaluation of internal stresses in the surface layers of BaTiO3 crystals by data of acoustic emission measurements

E. A. Dul'kin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The work continues a complex study of BaTiO3 crystals, possessing an involved domain structure of the `Forsberg grid' type. Earlier, the crystals were studied by measuring thermal expansion, dielectric constant, and acoustic emission in the region of phase transition. The curves exhibited additional anomalies at temperatures a few Kelvins below the Curie point TC. As the surface layers containing growth defects were removed by etching, the domain structure of crystals simplified, and the extra anomalies disappeared, while their temperatures TAE determined from the acoustic emission data gradually approached the TC value. The present work is concerned with the dependence of TAE on the layer thickness Δl removed, which was not studied earlier.

Original languageAmerican English
Pages (from-to)724-725
Number of pages2
JournalPhysics, chemistry and mechanics of surfaces
Volume11
Issue number6
StatePublished - 1995
Externally publishedYes

Fingerprint

Dive into the research topics of 'Evaluation of internal stresses in the surface layers of BaTiO3 crystals by data of acoustic emission measurements'. Together they form a unique fingerprint.

Cite this