Abstract
Ca2Ce2Ti5O16 ceramics processed via mix oxide route was investigated. Phase composition and microwave dielectric properties were measured using X-ray diffraction and a cavity method, respectively. CeO2 and another unidentified phase (that vanishes at ≥1400°C) existed as secondary phases along with the parent Ca2Ce2Ti5O16 phase. The amount of the parent Ca2Ce2Ti5O16 phase increased with increasing sintering temperature from 1350°C to 1450 °C accompanied by a decrease in the apparent density. The density decreased but εr and Qufo increased with sintering temperature. An εr ∼87.2, Qufo ∼5915 GHz and τf ∼219 GHz was achieved for the sample sintered at 1450°C.
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