TY - JOUR
T1 - Evaluation of internal stresses in the surface layers of BaTiO3 crystals by data of acoustic emission measurements
AU - Dul'kin, E. A.
PY - 1995
Y1 - 1995
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0029544868&partnerID=8YFLogxK
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AN - SCOPUS:0029544868
SN - 0734-1520
VL - 11
SP - 724
EP - 725
JO - Physics, chemistry and mechanics of surfaces
JF - Physics, chemistry and mechanics of surfaces
IS - 6
ER -