The influence that the holding time exerts on the microwave dielectric property of the glass-ceramic of SiO2-Al2O3-SrO-ZnO-La2O3under 750℃ is studied.The dielectric property is measured by perturbation method and the...The influence that the holding time exerts on the microwave dielectric property of the glass-ceramic of SiO2-Al2O3-SrO-ZnO-La2O3under 750℃ is studied.The dielectric property is measured by perturbation method and the microcrystalline phase has been analyzed by XRD and SEM.The new glass phase La2ZrTiO7 produced by the reaction(Q=1800,τε=+500ppm/℃) is of great signality to the development of new microwave dielectric materials.The sample which was insulated at 750℃ for 35h with superior dielectric properties: εr=12.82,Q=1150,τε=-19.5ppm/℃.展开更多
文摘The influence that the holding time exerts on the microwave dielectric property of the glass-ceramic of SiO2-Al2O3-SrO-ZnO-La2O3under 750℃ is studied.The dielectric property is measured by perturbation method and the microcrystalline phase has been analyzed by XRD and SEM.The new glass phase La2ZrTiO7 produced by the reaction(Q=1800,τε=+500ppm/℃) is of great signality to the development of new microwave dielectric materials.The sample which was insulated at 750℃ for 35h with superior dielectric properties: εr=12.82,Q=1150,τε=-19.5ppm/℃.
