摘要
通过化学分析和先谱分析发现在无碱玻璃中有部分铁为网络形成体，其余的则为网络修饰体。所有的Ｆｅ３＋都以四配位形式存在；而Ｆｅ２＋只有少部分以四配位体存在，大部分的Ｆｅ２＋则呈六配位状态。
By means of chemical analysis and spectrum analysis,it is found that the iron containing in E galss act as both network formerand network modifier. All of the Fe3+ and only minior amounts of Fe2+ are in tetrahedral coordination,but most of Fe2+ are in octahedral coordination.
