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Structural investigations on (BaxSr1-x)(ZryTi1-(y+δ)Ta δ)O3 dielectric resonator compounds used for microwave applications
John D. Joseph, T. M. Vimala, Vemuri Rama Krishna Murthy
Published in Japan Society of Applied Physics
1996
Volume: 35
   
Issue: 1 A
Pages: 179 - 181
Abstract
Structural investigations on ABO3 type perovskite dielectric resonator (DR) compounds, namely (Ba0.29Sr0.71) (Zr0.973Ti0.027)O3 [BSZT] and (Ba0.29Sr0.71)(Zr0.951Ti0.039Ta 0.01)O3 [BSZTTa] were carried out using X-ray Rietveld method. The structures were found to be isostructural with SrZrO3 and belong to the space group Pbnm. In both the structures, the tilt angles of the BO6 octahedra were lower than that in SrZrO3. The volume of the octahedron was comparable for all the three. When Ta was substituted in BSZT, dielectric resonator properties of the resulting product BSZTTa improved substantially.
About the journal
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
PublisherJapan Society of Applied Physics
ISSN00214922
Open AccessNo
Concepts (18)
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    BARIUM COMPOUNDS
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    Calculations
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    Crystal structure
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    Natural frequencies
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    Perovskite
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    Resonators
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    Strontium compounds
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    Tantalum
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    X ray analysis
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    Zirconium compounds
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    DIELECTRIC LOSS TANGENT
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    Dielectric resonators
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    Isostructural
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    OCTAHEDRON
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    TEMPERATURE COEFFICIENT OF RESONANT FREQUENCY
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    Tilt angles
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    X RAY RIETVELD METHOD
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    Dielectric materials