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Title: Enhanced Dielectric Properties of Ba3ZnTa2−xNbxO9 in Microwave Region Using Tungstic Acid
Authors: Tomar, R
Bisht, Y
Abhilash, P
Thirumal, M
Keywords: perovskite
1:2 ordering
dielectric properties
high Q
Issue Date: 2-Jan-2020
Publisher: Taylor & Francis
Citation: Phase Transitions;93(1):175-182.
Abstract: Dielectric resonators belonging to the families of complex perovskite Ba3ZnTa2−xNbxO9 were synthesized by a solid-state reaction route. Calcination at 1250°C leads to oxides with ordered (hexagonal) perovskite structure over the range (0.25 ≤ x ≤ 1.75). However, ordering refraction intensity of PXRD patterns increased on sintering at 1340°C with tungstic acid, as a sintering aid. Sintering has lead to >90% density. In microwave range, Ba3ZnTa0.5Nb1.5O9 shows much higher permittivity (35) and quality factor (43,120 GHz).
Appears in Collections:2020

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