TY - JOUR
T1 - A polyethylene glycol-modified solid-state reaction route to synthesize relaxor ferroelectric Pb(Mg1/3Nb2/3)O3- PbTiO3 (PMN-PT)
AU - Yu, Shuhui
AU - Huang, Haitao
AU - Zhou, Li Min
AU - Ye, Yin
PY - 2008/4/1
Y1 - 2008/4/1
N2 - By introducing polyethylene glycol (PEG) to the conventional simultaneously mixed oxide reaction route, the 0.65Pb(Mg1/3Nb2/3)-0. 35PbTiO3 (0.65PMN-0.35PT) powders and ceramics with pure perovskite phase have been successfully synthesized. It is found that PEG interacts with PbO oxide in a way favoring the formation of the desired perovskite phase. As a result, pyrochlore-free 0.65PMN-0.35PT powders are synthesized at a low temperature of 850°C. The ceramics sintered at 1000°C show uniform grains with the size ranging from 1 to 3 μm. The room temperature dielectric constant is 3440. The maximum dielectric constant is 16 220 at 1 kHz. This method can be applied to the synthesis of other Pb-containing and Bi-containing ferroelectric materials, especially the relaxor-type ferroelectrics in which the pyrochlore phase is difficult to eliminate.
AB - By introducing polyethylene glycol (PEG) to the conventional simultaneously mixed oxide reaction route, the 0.65Pb(Mg1/3Nb2/3)-0. 35PbTiO3 (0.65PMN-0.35PT) powders and ceramics with pure perovskite phase have been successfully synthesized. It is found that PEG interacts with PbO oxide in a way favoring the formation of the desired perovskite phase. As a result, pyrochlore-free 0.65PMN-0.35PT powders are synthesized at a low temperature of 850°C. The ceramics sintered at 1000°C show uniform grains with the size ranging from 1 to 3 μm. The room temperature dielectric constant is 3440. The maximum dielectric constant is 16 220 at 1 kHz. This method can be applied to the synthesis of other Pb-containing and Bi-containing ferroelectric materials, especially the relaxor-type ferroelectrics in which the pyrochlore phase is difficult to eliminate.
UR - http://www.scopus.com/inward/record.url?scp=41549168145&partnerID=8YFLogxK
U2 - 10.1111/j.1551-2916.2007.02241.x
DO - 10.1111/j.1551-2916.2007.02241.x
M3 - Journal article
SN - 0002-7820
VL - 91
SP - 1057
EP - 1064
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 4
ER -