硅酸盐通报2023，Vol.42Issue(12)：4490-4500,11.
不同Al2O3/SiO2比的MgO-Al2O3-SiO2微晶玻璃制备及性能研究
Preparation and Properties of MgO-Al2O3-SiO2 Glass-Ceramics with Different Al2O3/SiO2 Ratios
摘要
Abstract
MgO-Al2O3-SiO2(MAS)glass-ceramics were prepared by sintering method.The effects of different Al2O3/SiO2 mass ratios on the microstructure and physicochemical properties of MAS glass-ceramics were studied.The structure and surface morphology of parent glass and glass-ceramics were characterized by XRD,DSC,FTIR and FESEM.The density,mechanical properties,corrosion resistance,thermal properties and dielectric properties of glass-ceramics were tested.The results show that as the mass ratio of Al2O3/SiO2 increases from 0.52 to 0.64,the glass transition temperature Tg of the parent glass increases and the crystallization peak temperature Tp of the parent glass decreases,promoting the precipitation of α-cordierite crystal phase.The density of the samples fluctuates in the range of 2.52～2.60 g/cm3,dielectric constant εr increases from 1.73 to 4.51,thermal expansion coefficient decreases from 4.46×10-6 to 2.38×10-6℃ -1,dielectric loss tan δ fluctuates in the range of 8.4×10-3～3.7×10-3,and the flexural strength fluctuates in the range of 80～120 Mpa.关键词
Al2O3/SiO2/MgO-Al2O3-SiO2/微晶玻璃/堇青石/介电性能Key words
Al2O3/SiO2/MgO-Al2O3-SiO2/glass-ceramics/cordierite/dielectric property分类
化学化工引用本文复制引用
湛玲丽,贾涵,张晓峰,李宏,谢俊,熊德华..不同Al2O3/SiO2比的MgO-Al2O3-SiO2微晶玻璃制备及性能研究[J].硅酸盐通报,2023,42(12):4490-4500,11.基金项目
广西科技基地和人才专项(AD22035003) （AD22035003）
国家节能低碳材料生产应用示范平台项目(TC220H06N) （TC220H06N）
合浦县硅材料产业技术研究中心开放课题(2023-YJS-XDH-01) （2023-YJS-XDH-01）
