TY - JOUR
T1 - Dielectric and piezoelectric properties of the morphotropic phase boundary composition in the (0.8-x) Pb(Mg 1/3Ta 2/3) O 3-0.2PbZrO 3-xPbTiO3 ternary system
AU - Hao, Hua
AU - Zhang, Shujun
AU - Shrout, Thomas R.
N1 - Funding Information:
'The research reported herein was supported through the Cooperative Research Program of the Office of Education, U. S. Department of Health, Education and Welfare; Grant MH11236 from the National Institute of Mental Health, United States Public Health Service; and Grant GN 534.1 from the Office of Science Information Service, National Science Foundation, to the Computer and Information Science Research Center, The Ohio State University.
PY - 2008/7
Y1 - 2008/7
N2 - Morphotropic phase boundary (MPB) compositions separating rhombohedral and tetragonal phases in the (1-x-y)Pb(Mg 1/3 Ta 2/3)O 3-yPbZrO 3-xPbTiO 3 (PMT-PZ-PT100x) ternary solid solution system were characterized using X-ray diffraction and dielectric, piezoelectric properties. This work focused on compositions with a PZ content fixed at y=0.2, with an MPB composition found to be located at x=0.4. Piezoelectric coefficients and dielectric permittivity were found to be on the order of d 33=580 pC/N and 4100, respectively. Acceptor modification using manganese was found to induce a "hardening" effect in 0.4PMT-0.2PZ-0.4PT, with decreased piezoelectric coefficients d 33 and dielectric loss and increased mechanical quality factor Q. Piezoelectric coefficients d 33, Q values, and dielectric loss were found to be 500 pC/N, 2000, and 0.4%, respectively, for 0.4PMT-0.2PZ-0.4PT with MnO 2 dopant levels around 0.5 wt%. The figure of merit (product of Q and d 33) was found to be on the order of 1 × 10 6, significantly higher when compared with other hard piezoelectric PZT materials. Specifically, the PMT-PZ-PT materials may be attractive candidates for high-power ultrasonic applications, particularly fine-scale components that require relating high permittivities.
AB - Morphotropic phase boundary (MPB) compositions separating rhombohedral and tetragonal phases in the (1-x-y)Pb(Mg 1/3 Ta 2/3)O 3-yPbZrO 3-xPbTiO 3 (PMT-PZ-PT100x) ternary solid solution system were characterized using X-ray diffraction and dielectric, piezoelectric properties. This work focused on compositions with a PZ content fixed at y=0.2, with an MPB composition found to be located at x=0.4. Piezoelectric coefficients and dielectric permittivity were found to be on the order of d 33=580 pC/N and 4100, respectively. Acceptor modification using manganese was found to induce a "hardening" effect in 0.4PMT-0.2PZ-0.4PT, with decreased piezoelectric coefficients d 33 and dielectric loss and increased mechanical quality factor Q. Piezoelectric coefficients d 33, Q values, and dielectric loss were found to be 500 pC/N, 2000, and 0.4%, respectively, for 0.4PMT-0.2PZ-0.4PT with MnO 2 dopant levels around 0.5 wt%. The figure of merit (product of Q and d 33) was found to be on the order of 1 × 10 6, significantly higher when compared with other hard piezoelectric PZT materials. Specifically, the PMT-PZ-PT materials may be attractive candidates for high-power ultrasonic applications, particularly fine-scale components that require relating high permittivities.
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U2 - 10.1111/j.1551-2916.2008.02465.x
DO - 10.1111/j.1551-2916.2008.02465.x
M3 - Article
AN - SCOPUS:64549140715
SN - 0002-7820
VL - 91
SP - 2232
EP - 2235
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 7
ER -