Elastic properties of Ca 5− x A x Nb 2TiO 12 (A = Mg, Zn) microwave ceramics

Microwave dielectrics in Ca 5− x A x Nb 2TiO 12 (A = Mg, Zn) system have been prepared for different values of x by conventional solid-state ceramic route. The elastic properties of the ceramics were investigated as a function of composition by ultrasonic techniques. X-ray diffraction studies reveal...

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Bibliographic Details
Published inMaterials research bulletin Vol. 41; no. 4; pp. 893 - 898
Main Authors George, Vimala, Philip, J., Bijumon, P.V., Sebastian, M.T.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2006
Subjects
D. Elastic properties
D. Elastic properties
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Summary:Microwave dielectrics in Ca 5− x A x Nb 2TiO 12 (A = Mg, Zn) system have been prepared for different values of x by conventional solid-state ceramic route. The elastic properties of the ceramics were investigated as a function of composition by ultrasonic techniques. X-ray diffraction studies revealed that the ceramics form phase pure compounds for 0 ≤ x ≤ 1 and form mixture phases beyond x = 1. The elastic properties were strongly affected by structural transformations. Magnesium-based compositions have better elastic properties compared with zinc-based system.
ISSN:0025-5408
1873-4227
DOI:10.1016/j.materresbull.2005.09.030