双碱金属氧化物对钙硼硅微晶玻璃性能的影响  

Effect of double alkali oxides additions on properties of CaO-B_2O_3-SiO_2 glass ceramic

作　　者：吴路燕[1] 周洪庆[1] 朱海奎[1] 韦鹏飞[1] 宁革[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《电子元件与材料》2010年第10期17-20,共4页Electronic Components And Materials

基　　金：国家"863"计划资助项目(No.2007AA03Z455);江苏省科技支撑计划资助项目(No.BE2009168)

摘　　要：向CaO-B2O3-SiO2微晶玻璃中添加双碱金属氧化物Na2O和Li2O。研究了Na2O和Li2O的总体质量分数和二者的质量比对玻璃试样性能的影响。采用DSC、XRD、SEM分析了玻璃的性能和微观形貌。结果表明:烧结后试样晶相主要为硅灰石;当w(双碱金属氧化物)为1.5%,ζ(Na2O∶Li2O)为2∶3时,试样能在950℃烧结,εr为6.16,tanδ为3.5×10–3(1MHz)。Double alkali oxides （Na2O and Li2O） were added into CaO-B2O3-SiO2（CBS） glass ceramics, effects of different mass rates and contents of Na2O and Li2O on sintering properties and dielectric properties of the glass ceramics were discussed. Thermal behavior, phase compositions, microstructures were analyzed by DSC, XRD and SEM. The results show that the main crystal phase of the samples is wollastonite. The glass ceramic has well properties with εr = 6.16 and tanδ = 3.5×10–3 at 1 MHz when w（Na2O ＋ Li2O） is 1.5% and ζ（Na2O∶Li2O） is 2∶3 sintering at 950 ℃.

关 键 词：钙硼硅微晶玻璃 碱金属氧化物 性能 

分 类 号：TQ171[化学工程—玻璃工业]