Abstract

Modification of the microwave dielectric properties in Ba6−3xNd8+2xTi18O54 (x= 0.5) solid solutions by Bi/Sm cosubstitution for Nd was investigated. A large increase in the dielectric constant and near‐zero temperature coefficient combined with high Qf values were obtained in modified Ba6−3xNd8+2xTi18O54 solid solutions where an enlarged solid solution limit of Bi in Ba6−3xNd8+2xTi18O54 was observed. Excellent microwave dielectric characteristics (ɛ= 105, Qf= 4110 GHz, and very low τf) were achieved in the composition Ba6−3x(Nd0.7Bi0.18Sm0.12)8+2xTi18O54.

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