Abstract
To explore the influence of TiO2 and B2O3 contents on the sintering behavior and crystallization of SrO–BaO–B2O3–SiO2 glass-ceramics, the glass-ceramics with different TiO2/B2O3 ratios were prepared by sintering at 800 and 850 °C for 10 min. The results showed that the glass transition temperature and sintering temperature increased with increasing the TiO2/B2O3 ratio. The average bridging oxygen number decreased from 2.44 to 2.07, which revealed that the polymerization degree of the glass-ceramics decreased. With increasing the TiO2/B2O3 ratio, the crystallinity of the glass-ceramics and the homogenization of grains size were improved, and the precipitation of the SrTiO3 phase was promoted. The sample with a TiO2/B2O3 ratio of 0.62, which achieved excellent densification sintered at 850 °C for 10 min, showed a dielectric constant of 18.11, a dielectric loss of 3.93 × 10−3, and a thermal expansion coefficient of 10.04 × 10−6 K−1, indicating that the SrO–BaO–B2O3–SiO2 glass-ceramics have great potential in the application of low-temperature cofired ceramics.
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