...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Considerations on the structure and physical properties of B _2O_3-SiO_2 and GeO_2-SiO_2 glasses
【24h】

Considerations on the structure and physical properties of B _2O_3-SiO_2 and GeO_2-SiO_2 glasses

机译：B _2O_3-SiO_2和GeO_2-SiO_2玻璃的结构和物理性能的考虑

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Data of density, refractive index and thermal expansion coefficient for B_2O_3-SiO_2 and GeO_2-SiO_2 glasses have been analyzed. The volumes of the structural units are the same found for the vitreous B_2O_3, GeO_2 and SiO _2. The volume of any structural unit is constant over the entire composition region of the glass system. The same has been found for the differential refraction and unit refraction of the structural units in these glasses. Different features are observed for the differential expansion of the structural units. There is a considerable change with composition in the differential expansion of BO_3, GeO_4 and SiO_4 units. The effect is attributed to a change in the asymmetry of vibrations with the number of Si-O-B or Si-O-Ge linkages in the matrix. The thermal expansion coefficient is mainly determined by the contribution of B_2O _3 or GeO_2 in the concerned glasses.
机译：分析了B_2O_3-SiO_2和GeO_2-SiO_2玻璃的密度，折射率和热膨胀系数。玻璃态B_2O_3，GeO_2和SiO _2的结构单元体积相同。在玻璃系统的整个组成区域中，任何结构单元的体积都是恒定的。对于这些玻璃中的结构单元的微分折射和单位折射已经发现相同。对于结构单元的不同膨胀，观察到不同的特征。 BO_3，GeO_4和SiO_4单元的膨胀差在组成上有相当大的变化。该效应归因于振动的不对称性随基质中Si-O-B或Si-O-Ge键的数量而变化。热膨胀系数主要由有关玻璃中B_2O _3或GeO_2的贡献决定。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号