Microwave dielectric properties of Bi-substituted La(Mg1/2Ti1/2)O3
In: Journal of the European Ceramic Society, Jg. 27 (2007), Heft 8-9, S. 2887-2891
academicJournal
- print, 16 ref
Zugriff:
The system La(Mgi/2Tii/2)03-Bi(Mgi/2Tii/2)03 (LMT-BMT) was investigated in respect to formation of perovskite solid solutions based on lanthanum magnesium titanate. Single-phase perovskite (1- x)LMT-xBMT ceramics (0≤ x≤ 0.3) were prepared and their crystal structure and dielectric properties were studied. It has been found that within the solubility range the crystal structure of Bi-substituted LMT remains monoclinic, P21/n. Unit cell volume was evaluated to be almost independent on x, varying within the experimental error. Relative permittivity of the ceramics increases by almost a factor of 3 in the range 0 ≤x ≤ 0.3 and its value is 40-45 at the compositional region where temperature coefficient of the resonant frequency passes a zero-value. Compositional and temperature variations of the dielectric parameters for LMT-BMT estimated at different frequency ranges are considered in comparison with those observed in other Bi-substituted ceramics based on LMT.
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Microwave dielectric properties of Bi-substituted La(Mg1/2Ti1/2)O3
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Autor/in / Beteiligte Person: | SALAK, Andrei N ; FERREIRA, Victor M |
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Zeitschrift: | Journal of the European Ceramic Society, Jg. 27 (2007), Heft 8-9, S. 2887-2891 |
Veröffentlichung: | Oxford: Elsevier, 2007 |
Medientyp: | academicJournal |
Umfang: | print, 16 ref |
ISSN: | 0955-2219 (print) |
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