Abstract
This article aims to investigate the effects of MgO contents in CaO–Al2O3–B2O3–SiO2 (CABS) glass and different glass/ceramic mass ratios on sintering shrinkage behavior, phase composition, microstructure, and microwave dielectric properties of CABS glass/Al2O3 composites. The results show that an appropriate content of MgO can promote the sintering densification of the composite material and improve the dielectric properties of the composite material. When the content of MgO is 3 wt% (in the CABS glass), the CABS glass/45 wt% Al2O3 sample sintered at 850 °C for 30 min exhibits the best comprehensive properties with the density of 2.6 g/cm3, dielectric constant (εr) of 5.99, dielectric loss (tan δ) of 1.93 × 10–3 (10 GHz) and coefficient of thermal expansion of 6.76 ppm/°C. It was a chemically compatible with silver, which shows great potential in the application of LTCC material in packaging substrates.
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Acknowledgements
Authors thank Research Project of Shanxi Scholarship Council of China (No. 2022-042), Key R & D program of Shanxi Province (No. 202102030201006), Natural Science Foundation of Shanxi Province (No. 202203021221059).
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XW was responsible for major experiments and tests, data curation, and writing and preparing the original draft. ZW and ZH participated in experiment process control. TS contributed to data curation and test platform management. YM and FG were involved in writing-review and editing.
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Wang, X., Wei, Z., Huang, Z. et al. Effects of MgO contents in CaO–Al2O3–B2O3–SiO2 (CABS) glass and different glass/ceramic mass ratios on densification and dielectric properties of CABS glass/Al2O3 composites. J Mater Sci: Mater Electron 34, 2299 (2023). https://doi.org/10.1007/s10854-023-11760-5
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DOI: https://doi.org/10.1007/s10854-023-11760-5