| xNa2O·yB2O3玻璃的融熔态结构 |
| |
| 引用本文： | 徐曙,邬学文.xNa2O·yB2O3玻璃的融熔态结构[J].物理学报,1990,39(5):714-717. |
| |
| 作者姓名： | 徐曙 邬学文 |
| |
| 作者单位： | 华东师范大学分析测试中心,上海,200062 |
| |
| 摘 要： | 本文应用变温核磁共振技术研究了xNa2O·yB2O3二元玻璃体系的融熔态结构。结果表明,R≤0.5的熔体中存在两种较为稳定的结构:在730—780℃温度区域形成了B原子间以双桥氧连接的网状结构;在880—920℃温度区域形成了B原子间含三桥氧的链状结构。当R>0.5时熔体中只存在第一种结构。
关键词：
|
| 关 键 词： | xNa2O.YB2O3 玻璃 融熔态结构 |
| 收稿时间： | 7/4/1989 12:00:00 AM |
TEMPERATURE-DEPENDENT 11B NMR STUDIES OF Na2O·B2O3 GLASSES |
| |
| XU SHU and WU XUE-WEN.TEMPERATURE-DEPENDENT 11B NMR STUDIES OF Na2O·B2O3 GLASSES[J].Acta Physica Sinica,1990,39(5):714-717. |
| |
| Authors: | XU SHU and WU XUE-WEN |
| |
| Abstract: | The molten structure of Na2O·B2O3 glasses are investigated by the temperature-dependent 11B CW-NMR technique. The results show that, as R≤0.5 there are two stable configurations in the molten state. One configuration, occuring at 730-780℃, has two bridge-oxygen atoms between two boron atoms; and the other configuration, occuring at 880-920℃, has three bridge-atoms between two boron atoms. But only the first configuration exists as R>0.5. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
| 点击此处可从《物理学报》下载免费的PDF全文 |
|
