掺杂Nb_2O_5的钠钙硅玻璃结构与性能研究  

Study on structure and properties of Nb_2O_5 doped soda lime glass

作　　者：凤杰[1] 吴小飞 周珏辉[1] 杨辉[1] 张启龙[1] 

机构地区：[1]浙江大学材料科学与工程学院,浙江杭州310027 [2]浙江金利华电气股份有限公司,浙江金华321037

出　　处：《新型建筑材料》2015年第6期60-62,共3页New Building Materials

基　　金：国家高技术研究发展计划(863计划)(2013AA030701)

摘　　要：以Na-Ca-Si玻璃系统为研究对象,研究了掺杂Nb2O5对Na-Ca-Si玻璃结构与性能的影响。结果表明:Nb2O5能够对原有的玻璃结构起到修复作用,Nb—O—Si及Nb=O键具有更高的键强,使玻璃的网络结构更加稳定、紧密,从而可显著提高机械强度,并降低介质损耗。当Nb2O5含量达到3%时Na-Ca-Si玻璃具有最佳综合性能,抗弯强度为117 MPa,相对介电常数为8.41,介电损耗为1.25×10-3。The effect of Nb205 addition on the structure and properties of soda lime glass are studied,choosing the Na-Ca-Si glass system as the basic research object. The results show that Nb2O5 can effectively repair the original glass structure. The new- ly formed Nb-O-Si and Nb=O have larger bond energy,which results that glass network structure becomes more stable and compact, the mechanical strength is improved largely, and the dielectric loss is decreased. The experiment result shows that glass with 3% of Nb2O5 contents reveals the best comprehensive properties：with the mechanical strength of 117 MPa,the relative dielec- tric constant of 8.41,and the dielectric loss of 1.25×10^-3

关 键 词：玻璃 结构 机械强度 介质损耗 

分 类 号：TU524[建筑科学—建筑技术科学] TQ171.718.1[化学工程—玻璃工业]