钾钠物质的量比对LAS光敏微晶玻璃介电性能的影响

Effect of the Molar Ratio of Potassium and Sodium on Dielectric Properties of Lithium-aluminosilicate Photosensitive Glass-ceramics

作为新型玻璃转接板的基板材料,光敏微晶玻璃的介电性能成为限制其发展的关键因素之一。为此,本研究通过熔融法制备出含有不同钾钠物质的量比的光敏微晶玻璃样品,借助网络矢量分析仪、拉曼光谱、红外光谱以及X射线衍射仪等分析钾钠物质的量比对样品介电常数和介电损耗的影响。结果表明,钾钠物质的量比为0的样品(不含有K2O)具有最低的介电常数和介电损耗,分别为5.0和4.9×10-3(1GHz),这一研究表明增加Na2O对K2O的取代量可以使玻璃结构更加致密,降低玻璃极化和光敏玻璃陶瓷的介电常数和损耗。

As a new type substrate material of glass interposer,the dielectric properties of photosensitive glass-ceramics have become one of the key factors limiting their development.In this study,photosensitive glass-ceramics with different molar ratios of potassium to sodium were prepared by melting method.The effects of molar ratio of potassium to sodium on dielectric constant and dielectric loss of the samples were analyzed by means of network vector analyzer,Raman spectroscopy,infrared spectroscopy and X-ray diffraction.The results showed that the sample with 0 molar ratio of potassium to sodium(without K2O)had the lowest dielectric constant and dielectric loss,and the values were 5.0 and 4.9×10-3(1 GHz),respectively.It suggested that increasing the substitution of Na2O for K 2O could promote the glass structure more compact and reduce glass polarization,which would decrease the dielectric constant and loss of photosensitive glass-ceramics.