Dielectric properties of Pb[(Mg1/3Nb2/3),Ti]O3 with Bi modification |
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Authors: | Yoon-Sung Kim Jee-Su Kim Nam-Kyoung Kim |
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Affiliation: | (1) Department of Inorganic Materials Engineering, Kyungpook National University, Daegu, 702-701, Korea |
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Abstract: | Bi(Mg2/3Nb1/3)O3 was partially substituted into a Pb(Mg1/3Nb2/3)O3⋅PbTiO3 perovskite system and resultant changes in the phase developments and dielectric properties were investigated. Two major
structures of columbite and rutile, along with a small fraction of Mg4Nb2O9 (α-Al2O3 structure), were developed in the B-site precursor system, whereas only a perovskite was observable after the addition of
PbO and Bi2O3. The replacement of Bi for Pb resulted in a great reduction in the maximum dielectric constants as well as a substantial
decrease in the dielectric maximum temperatures. |
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Keywords: | Perovskite Dielectric property Pb(Mg1/3Nb2/3)O3 (PMN) PbTiO3 (PT) Bi(Mg2/3Nb1/3)O3 (BMN) |
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