Microwave dielectric properties of Mg4Al2Ti9O25 ceramics

Microwave dielectric properties of Mg4Al2Ti9O25 ceramics

Phase-singular Mg4Al2Ti9O25 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 l...

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Veröffentlicht in:Materials letters 2008-02, Vol.62 (3), p.556-560
Hauptverfasser: Jayanthi, S., Kutty, T.R.N.
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Ceramics
Permittivity
Stoichiometry and homogeneity
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creator Jayanthi, S.
Kutty, T.R.N.
description Phase-singular Mg4Al2Ti9O25 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.
doi_str_mv 10.1016/j.matlet.2007.06.013
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subjects Ceramics
Permittivity
Stoichiometry and homogeneity
title Microwave dielectric properties of Mg4Al2Ti9O25 ceramics
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