Characterization of (1-x)Pb(Mg1/3Nb2/3)O3 — (x)PbTiO3 and Pb(Sc1/2Ta1/2)O3 transparent ceramics prepared by uniaxial hot-pressing

J. R. Giniewicz Materials Research Laboratory, The Pennsylvania State University, University Park, PA, U.S.A.

D. A. McHenry Materials Research Laboratory, The Pennsylvania State University, University Park, PA, U.S.A.

T. R. Shrout Materials Research Laboratory, The Pennsylvania State University, University Park, PA, U.S.A.

S. J. Jang Materials Research Laboratory, The Pennsylvania State University, University Park, PA, U.S.A.

A. S. Bhalla Materials Research Laboratory, The Pennsylvania State University, University Park, PA, U.S.A.

F. W. ainger Plessey Research (Caswell) Limited, Caswell, Towcester, U.K.

Abstract

Transparent relaxor ferroelectric ceramics of (1-x)Pb(Mg1/3Nb2/3)O3-(x)PbTiO3 and Pb(Sc1/2Ta1/2)O3 have been prepared by low temperature uniaxial hot-pressing. The ceramics are highly dense (> 99.5% theor.) and transmit throughout the visible. The addition of excess PbO and La2O3 and post-pressing heat treatment are found to enhance transparency. The ceramics have been characterized for phase purity, development of microstructure, dielectric behavior and optical transmission in order to determine optimum conditions.

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Characterization of (1-x)Pb(Mg1/3Nb2/3)O3 — (x)PbTiO3 and Pb(Sc1/2Ta1/2)O3 transparent ceramics prepared by uniaxial hot-pressing

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Characterization of (1-x)Pb(Mg1/3Nb2/3)O3 — (x)PbTiO3 and Pb(Sc1/2Ta1/2)O3 transparent ceramics prepared by uniaxial hot-pressing

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