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A new group of microwave dielectric ceramics in the RE(Ti0.5W0.5)O4 [RE=Pr, Nd, Sm, Gd, Tb, Dy, and Y] system

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Abstract

RE(Ti0.5W0.5)O4 [RE=Pr, Nd, Sm, Gd, Tb, Dy, and Y] ceramics have been prepared as single-phase materials by a conventional solid-state ceramic route. The ceramics have been characterized by X-ray diffraction and microwave methods. The RE(Ti0.5W0.5)O4 ceramics showed an increase in cell volume and a corresponding decrease in density with ionic radius of RE3+ ions. The dielectric constant varies from 21 to 25, Qu×f from 6000 to 11 000 GHz and τf from −5 to −22 ppm °C−1. The microwave dielectric properties indicate that these materials are possible candidates for dielectric resonator as well as substrate applications in microwave integrated circuits.

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Authors and Affiliations

  1. Ceramics Technology Division, Regional Research Laboratory, Trivandrum, 695 019, India

    P. V. Bijumon, S. Solomon & M. T. Sebastian

  2. Department of Electronics, Cochin University of Science And Technology, Kochi, 682 022, India

    P. Mohanan

Authors
  1. P. V. Bijumon
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  2. S. Solomon
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  3. M. T. Sebastian
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  4. P. Mohanan
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Bijumon, P.V., Solomon, S., Sebastian, M.T. et al. A new group of microwave dielectric ceramics in the RE(Ti0.5W0.5)O4 [RE=Pr, Nd, Sm, Gd, Tb, Dy, and Y] system. Journal of Materials Science: Materials in Electronics 14, 5–8 (2003). https://doi.org/10.1023/A:1021515312935

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