Effect of Glass Addition on the Microwave Dielectric Properties of CaMgSi2O6 Ceramics

Abstract

CaMgSi2O6 (CMS) ceramics prepared by the solid-state ceramic route have a sintering temperature of 13001C/2 h. The sintering temperature of CMS was reduced below the melting point of Ag using low-melting LBS and LMZBS glasses. In the case of CMS115 wt% LMZBS sintered at 9001C/2 h, the dielectric properties obtained were er58.2, Qu f532,000 GHz (10.15 GHz), and tf5–48 ppm/1C. The CMS115 wt% LBS composite, sintered at 9251C/2 h, showed er58, Qu f515,000 GHz (10.17 GHz), and tf5–49 ppm/1C. The chemical compatibility of Ag with the ceramic–glass composites was also investigated for low-temperature co-fired ceramic applications.