@article{38f672dddc6841028eb7934f7f513270,
title = "Electrostrictive behavior of lead magnesium niobate based ceramic dielectrics",
abstract = "The electrostrietive strains induced by high electric fields have been measured for compositions in the solid solution system Pb(Mg1/3Nb2/3)O3: PbTiO3 (PMN:PT) containing up to 20 mole% PT. Large anhysteretic quadratic strains (up to 1,000 × 10−6) can be induced at room temperature with no evidence of remanence. In pure Pb(Mg1/3Nb2/3)O3 the electrostrietion constants Q11 Q12are significantly smaller than in normal perovskites and the large induced strains may be traced to the high polarizability of the relaxor. With the addition of PT, the Q constants increase and the relaxation range shortens, with compositions close to 10 mole% PT providing maximum quadratic sensitivity. Over the relaxation range of temperatures, the thermal expansion is extremely small and comparable to the best thermally stable glasses and ceramics.",
author = "Jang, {S. J.} and K. Uchino and S. Nomura and Cross, {L. E.}",
note = "Funding Information: Thermal expansion was measured using a conventional dilatometer over the temperature range from -200 to +600°C. It is evident that over the relaxation range of temperatures the thermal strain is anomalously small (Fig. 6) as compared to normal non-relaxor perovskites. The combination of high stable electrostrictive deformations, coupled with low thermal expansion appear to make the PMN:PT electrostriction ceramics suitable candidates for a number of specialized transducer applications in micro-positioners and in adaptive optic systems. The lower values of electrostrictive Q constants observed here in PMN, and also evident in Pb(Znl/3Nb2/3)0 2 and in a number of relaxors of tungsten bronze structure3 may play an important ro4e in de-stabilizing the macro-domain structure of the normal ferroelectric state. This work was supported by joint DARPA:ONR funding under Contract No. N00014-76-C-0515, Project No. 3203. Copyright: Copyright 2016 Elsevier B.V., All rights reserved.",
year = "1980",
month = jan,
day = "1",
doi = "10.1080/00150198008226059",
language = "English (US)",
volume = "27",
pages = "31--34",
journal = "Ferroelectrics",
issn = "0015-0193",
publisher = "Taylor and Francis Ltd.",
number = "1",
}