Kutty, TRN and Jayanthi, S (2005) Improved microwave dielectric properties of (Mg1-(x+y)CaxLay)(Ti1-yAly)O3 ceramics. In: Applied Physics Letters, 86 (12). 122902 -122902.
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Abstract
Phase-singular solids of the composition, (Mg1−(x+y) Cax Lay)(Ti1−yAly)O3 (x = 0 to 0.88; y = 0.05 to 0.35) having the cubic perovskite-type structure were prepared by the substitution of La3+ and Al3+ in equivalent quantities which brought about complete miscibility between MgTiO3 and CaTiO3. These ceramics showed relative permittivities of 16.5 to 50 (at 6 GHz) with increasing Ca content, high Q values of 10 000 to 30 000 and retained near-zero temperature coefficients in permittivity at optimum y values. Their dielectric characteristics are better accountable in terms of the positional disorder rather than the tolerance factor of perovskite structure.
Item Type: | Journal Article |
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Publication: | Applied Physics Letters |
Publisher: | American Institute of Physics |
Additional Information: | Copyright of this article belongs to American Institute of Physics. |
Department/Centre: | Division of Chemical Sciences > Materials Research Centre |
Date Deposited: | 05 Jan 2012 09:27 |
Last Modified: | 05 Jan 2012 09:27 |
URI: | http://eprints.iisc.ac.in/id/eprint/43028 |
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