Temperature study of potassium niobate (KNbO(3)) elastic constants by Brillouin spectroscopy.

Authors :: Eschbach J
Vincent B
Rouxel D
El Hakiki M
Elmazria O
Source :: IEEE transactions on ultrasonics, ferroelectrics, and frequency control [IEEE Trans Ultrason Ferroelectr Freq Control] 2009 Mar; Vol. 56 (3), pp. 644-8.
Publication Year :: 2009
Abstract: This study deals with using Brillouin spectroscopy to determine the temperature variation of potassium niobate elastic constants. Two different samples have been used (Y- and Z-cut), and all the measurements were done in the temperature range between 300 K and 420 K. The calculations concern only the first-order coefficients. The acoustic velocity is then determined for each sample in 3 directions of propagation. Results are given for C( 22), C( 55), and C( 66) elastic constants and accuracy problems are discussed.

Language :: English
ISSN :: 1525-8955
Volume :: 56
Issue :: 3
Database :: MEDLINE
Journal :: IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Publication Type :: Academic Journal
Accession number :: 19411222
Full Text :: https://doi.org/10.1109/TUFFC.2009.1080

Full Text Access

Tools