Electronic Resource
s.l. ; Stafa-Zurich, Switzerland
Advances in science and technology
Vol. 45 (Oct. 2006), p. 2412-2421
ISSN:
1662-0356
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Natural Sciences in General
,
Technology
Notes:
Giant electromechanical coupling factor of k31 mode over 86% was found for (100)Pb[(Zn1/3Nb2/3)0.91Ti0.09]O3 and (110) Pb[(Mg1/3Nb2/3)0.74Ti0.26]O3 single-crystal plates poled in the[100] and [110] directions, respectively. The P-E hysteresis loops in the single-crystal plates withgiant k31 became asymmetric. Furthermore, the frequency response of impedance in these plates withgiant k31 consisted of a single vibration in the length direction. A mechanism to realize giant k31 canbe explained by the relationship between the crystal plane and poling direction. In addition, theexistence of giant piezoelectric d31 constant was proven by the strain measurement as well as by theimpedance measurement
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/42/transtech_doi~10.4028%252Fwww.scientific.net%252FAST.45.2412.pdf
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