Sintering behavior and properties of CABS/MgAI_2O_4 composite for LTCC applications

摘要

In this study, CaO-Al_O_V-B_2O3-SiO_2(CABS) glass/MgAl_2O_4 composite for low-temperature co-fired ceramics (LTCC) applications was prepared. The sinter-ability, microstructure, dielectric properties, mechanical properties, and coefficient of thermal expansion (CTE) of composite were determined. MgAl_2O_4 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.