TY - JOUR
T1 - Effect of sintering conditions on characteristics of PbTiO 3-PbZrO3-Pb(Mg1/3Nb2/3)O 3-Pb(Zn1/3Nb2/3)O3
AU - Wang, C. H.
AU - Chang, S. J.
AU - Chang, P. C.
N1 - Funding Information:
The author would like to acknowledge the financial support of the National Science Council (under contract NSC-92-2815-C-232-001-E) of the Republic of China.
PY - 2004/8/25
Y1 - 2004/8/25
N2 - In this work, the piezoelectric ceramic system of the Pb[(Zr 1-yTiy)0.74(Mg1/3Nb 2/3)0.20(Zn1/3Nb2/3) 0.06]O3, 0.47≤y≤0.57, with composition close to the morphotropic phase boundary (MPB) is studied. From the results of X-ray diffraction and piezoelectric measurement, ceramics near y=0.51 are found at the MPB between the tetragonal and pseudocubic perovskite. The effects of sintering time and packing powders on the properties of Pb[(Zr0.49Ti 0.51)0.74(Mg1/3Nb2/3) 0.20(Zn1/3Nb2/3)0.06]O3 (PZT-PMN-PZN) ceramic are discussed. Dielectric and piezoelectric properties have maximum values at the sintering temperature of 1250°C for 3 h. Longer sintering time causes excessive PbO loss and a resultant variation in composition, which leads to an inhomogeneous microstructure and the emergence of a pyrochlore phase. The pyrochlore phase is detrimental to the dielectric and piezoelectric properties. The PZT-PMN-PZN piezoceramics system, which has excellent dielectric and piezoelectric properties, uses uncalcined powder of the main component as the packing powder to provide a positive vapor pressure.
AB - In this work, the piezoelectric ceramic system of the Pb[(Zr 1-yTiy)0.74(Mg1/3Nb 2/3)0.20(Zn1/3Nb2/3) 0.06]O3, 0.47≤y≤0.57, with composition close to the morphotropic phase boundary (MPB) is studied. From the results of X-ray diffraction and piezoelectric measurement, ceramics near y=0.51 are found at the MPB between the tetragonal and pseudocubic perovskite. The effects of sintering time and packing powders on the properties of Pb[(Zr0.49Ti 0.51)0.74(Mg1/3Nb2/3) 0.20(Zn1/3Nb2/3)0.06]O3 (PZT-PMN-PZN) ceramic are discussed. Dielectric and piezoelectric properties have maximum values at the sintering temperature of 1250°C for 3 h. Longer sintering time causes excessive PbO loss and a resultant variation in composition, which leads to an inhomogeneous microstructure and the emergence of a pyrochlore phase. The pyrochlore phase is detrimental to the dielectric and piezoelectric properties. The PZT-PMN-PZN piezoceramics system, which has excellent dielectric and piezoelectric properties, uses uncalcined powder of the main component as the packing powder to provide a positive vapor pressure.
UR - http://www.scopus.com/inward/record.url?scp=3242703187&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=3242703187&partnerID=8YFLogxK
U2 - 10.1016/j.mseb.2004.03.028
DO - 10.1016/j.mseb.2004.03.028
M3 - Article
AN - SCOPUS:3242703187
SN - 0921-5107
VL - 111
SP - 124
EP - 130
JO - Materials Science and Engineering: B
JF - Materials Science and Engineering: B
IS - 2-3
ER -