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Microwave dielectric properties of $Mg_4Al_2Ti_9O_2_5$ ceramics

Jayanthi, S and Kutty, TRN (2007) Microwave dielectric properties of $Mg_4Al_2Ti_9O_2_5$ ceramics. In: Materials Letters, 62 (3). pp. 556-560.

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Phase-singular $Mg_4Al_2Ti_9O_2_5$ ceramics with the pseudobrookite structure suitable for microwave devices such as antenna substrate have been prepared by gel-carbonate method with the dielectric permittivity of 24.7 (at 2–8 GHz), Q-values>30,000 and temperature coefficients in permittivity (TCK) of less than +17 ppm $K^{-1}$. The dielectric characteristics are accountable in terms of ordering in the cation sub-lattice.

Item Type: Journal Article
Publication: Materials Letters
Publisher: Elsevier
Additional Information: Copyright of this article belongs to the Elsevier.
Keywords: Ceramics; Permittivity; Stoichiometry; homogeneity.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 19 Feb 2008
Last Modified: 19 Sep 2010 04:42
URI: http://eprints.iisc.ac.in/id/eprint/13058

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