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Title of Journal: J Mater Sci Mater Electron

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Abbravation: Journal of Materials Science: Materials in Electronics

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Springer US

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DOI

10.1016/0378-7796(82)90006-2

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1573-482X

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CaSubscript4/SubscriptLaSubscript2/Subscrip

Authors: R Rejini G Subodh M T Sebastian
Publish Date: 2007/12/12
Volume: 19, Issue: 12, Pages: 1153-1155
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Abstract

A novel low loss dielectric material Ca4La2Ti5O17 was prepared by solid state ceramic route The structure and microstructure of the Ca4La2Ti5O17 ceramics was investigated using XRD SEM and EDX techniques XRD result showed cubic perovskite like structure for Ca4La2Ti5O17 ceramics The ceramics were sintered in the temperature range of 1450–1575 °C The microwave dielectric properties of the material were investigated using a network analyzer in the frequency range of 3–6 GHz The variation in microwave dielectric properties of the Ca4La2Ti5O17 ceramics with sintering temperature was correlated with bulk density of the material Ca4La2Ti5O17 has εr of 73 Quxf of 16000 at 33 GHz and τf of 127 ppm/°C at the optimized sintering temperature of 1550 °C/4h

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