Article ID Journal Published Year Pages File Type
1620101 Journal of Alloys and Compounds 2010 6 Pages PDF
Abstract

The (1 − x)CeO2–xRE2O3 (RE = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er, Tm, Yb and Y), 0 ≤ x ≤ 1 ceramics have been prepared by solid state ceramic route. The solubility of different rare earths (RE) in ceria was investigated by using XRD, SEM and EDXA techniques. The microwave dielectric properties of the ceramics having different compositions were investigated. Several high Q dielectric resonator compositions were identified in (1 − x)CeO2–xRE2O3 (RE = La, Nd, Sm, Eu, Gd, Dy, Er, Tm, Yb and Y), ceramics for 0 ≤ x ≤ 1. The best properties were obtained for 0.9CeO2–0.1Eu2O3 (ɛr = 25.4, Qu × f = 70,300 GHz, τf = −64 ppm/°C), 0.8CeO2–0.2Dy2O3 (ɛr = 26.2, Qu × f = 70,150 GHz, τf = −57 ppm/°C) and 0.3CeO2–0.7Sm2O3 (ɛr = 19.7, Qu × f = 79,450 GHz, τf = −51 ppm/°C).

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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