【摘要】 本文确定了Li₂O-P₂O₅-V₂O₅系统玻璃的形成范围。采用交流电桥法测定了几组样品的电导率,lg（σT）～1/T曲线表明是由两个直线段构成,电导率在转变温以后的“晶化前期”异常增加,分析认为由于玻璃结构有序化程度增加所致。利用ESR实验对玻璃中钒离子价态进行了分析,表明该系统玻璃仅以V⁴⁺和V⁵⁺钒离子状态存在。随Li₂O含量增加,V⁵⁺离子浓度增加,试样电子电导下降。文中从结构角度对玻璃性能进行了讨论。更多还原

【Abstract】 The forming region of the Li₂ O-P₂O₅-V₂O₅ system glasses was det- ermined under our laboratorial condition. The conductivity of the spe- cimens was measured by alternating bridge method, conductivity meas- urements on the system glasses reveal a sharp break in the slope of the dependence of log conductivity upon reciprocal temperature in transfo- rmation temperature range and conductivity shows abnormal increasement "during Pre-crystallization process"above the break point, this is caused by the increasement of glass structure ordered extent during the process. Valency state analysis of vandaium ions by ESR shows that only V⁴⁺and V⁵⁺ ions exist in glasses. V⁵⁺ content increases and electronic conductivity decreases with increasing Li₂O content. Glass properties ware studied by means of structure.更多还原