B_2O_3-BaO-ZnO玻璃的形成规律及结构研究  

Investigation of the forming regularity and structurefor B_2O_3-BaO-ZnO system glass

作　　者：林娜[1] 尹振兴[1] 

机构地区：[1]安徽工业大学,安徽马鞍山243002

出　　处：《中国西部科技（学术版）》2007年第5期6-8,共3页Science and Technology of West China

摘　　要：用传统熔体冷却法制得B_2O_3-BaO-ZnO三元系统玻璃,研究了该系统玻璃的形成区,并通过红外光谱对玻璃的结构进行了测试。结果表明,该系统玻璃的形成范围较宽,B_2O_3的含量为25mol%～75mol%。当B_2O_3含量较低时,玻璃中B^(3+)以单个[BO_3]形式存在。随着B_2O_3含量的增加,部分[BO_3]转变成[BO_4]。当B_2O_3含量增加到一定程度时,通过[BO_3]和[BO_4]之间的桥氧离子的连接而形成含有[BO_3]和[BO_4]的环状结构。B2O3-BaO-ZnO system glasses are prepared using conventional melt quenching technology. The forming regularity is investigated and the structure are studied. The results show that： the forming range of B2O3-BaO-ZnO system glass is very wide, but the content of B2O3 has a limit within 25-75mol%; when the B2O3 content is lower, the B^3＋ ions exist in the single [BO3] triangles, the [BO3] triangles convert into [BO4] tetrahedrons with the increasingB2O3content in the glass forming area. Then the the [BO3] triangles and the [BO4] tetrahedrons are linked by bridge oxygens.

关 键 词：玻璃形成区 [BO3]三角体 [BO4]四面体 

分 类 号：TQ225.123[化学工程—有机化工]