Abstract
Niobate-titanate glass-ceramics with large dielectric constant were prepared by the dual optimization strategy employed——glass powder sintering method and simultaneous introduction of multiple nucleating agents. The study delved into the crystallization and microstructure of the glass ceramics, with a subsequent characterization of their dielectric and ferroelectric properties. In this investigation, the crystalline phase underwent a transformation from the Pb2Nb2O7 phase of G700 glass ceramics to the coexistence of (Pb, Sr)TiO3 and (Ba, Sr, Pb)Nb2O6 phase of G1100 glass ceramics. The crystal phase content exhibited a notable increase from 29 % to 82 %. The relative density of the glass ceramics reached a high of 99.4 %. The maximum dielectric constant recorded was 1493, accompanied by a maximum energy efficiency of up to 88.0 %. These results underscore the potential of glass ceramics as a promising material for Multilayer Ceramic Capacitor (MLCC) dielectric layers.
Published Version
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