Abstract

In this study, CaO–Al2O3–B2O3–SiO2(CABS) glass/MgAl2O4 composite for low-temperature co-fired ceramics (LTCC) applications was prepared. The sinterability, microstructure, dielectric properties, mechanical properties, and coefficient of thermal expansion (CTE) of composite were determined. MgAl2O4 as ceramic filler improves the dielectric properties of the composite, mechanical properties, and density. The 45 wt% CABS glass contents composite sintered at 900 °C exhibit superior performance, which have relatively high bulk density, dielectric constant = 6.51, dielectric loss = 3.1 × 10–3 (10 GHz) and CTE = 4.51 ppm/°C, flexural strength = 261 MPa.

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