...
  • 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 >Crystallization and microstructural characterization of B2O3-Al2O3-SiO2 glass
【24h】

Crystallization and microstructural characterization of B2O3-Al2O3-SiO2 glass

机译：B2O3-Al2O3-SiO2玻璃的结晶与微观结构表征

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

Glass containing B2O3-Al2O3-SiO2-Li2O-K2O Was prepared by conventional melting and annealing technique, and converted to transparent glass-ceramics by controlled nucleation and crystallization process. The nucleation and crystallization temperatures were determined by differential thermal analysis. X-ray diffraction was used to determine the crystal phases. Scanning electron microscopy was used to study the glass-ceramics morphology, the grain size and distribution in the residual glass. Infrared spectroscopy was used to confirm the reorganization of amorphous solid. X-ray photoelectron spectroscopy was used to determine the valence state of element. The transmittance was measured by UV-Vis-NIR scanning spectrophotometer. Two main crystal phases including Al4B2O9 and Al20B4O36 were observed in all samples. The change in B2O3/Al2O3 ratio has little influence on the crystal types of the B2O3-Al2O3-SiO2 glass-ceramics. B atoms existed in the form of [BO3] and [BO4]. Al existed in the forms of [AlO4] and [AlO6], and forming network together with [SiO4] tetrahedron. The transmittance of BAS glass-ceramics reached 90% at visible and infrared wavelength, and cut-on absorption at ultraviolet and cut-off absorption at infrared wavelength were observed.
机译：通过常规的熔化和退火技术制备含B 2 O 3 -Al 2 O 3 -SiO 2 -Li 2 O-K 2 O的玻璃，并通过受控的成核和结晶过程将其转化为透明的玻璃陶瓷。通过差示热分析确定成核和结晶温度。 X射线衍射用于确定晶相。扫描电子显微镜用于研究玻璃陶瓷的形态，晶粒尺寸和在残留玻璃中的分布。红外光谱用于确认无定形固体的重组。用X射线光电子能谱测定元素的价态。通过UV-Vis-NIR扫描分光光度计测量透射率。在所有样品中均观察到两个主要晶体相，包括Al4B2O9和Al20B4O36。 B 2 O 3 / Al 2 O 3比的变化对B 2 O 3 -Al 2 O 3 -SiO 2玻璃陶瓷的晶体类型几乎没有影响。 B原子以[BO3]和[BO4]的形式存在。 Al以[AlO4]和[AlO6]的形式存在，并与[SiO4]四面体一起形成网络。在可见光和红外波长下，BAS玻璃陶瓷的透射率达到90％，观察到紫外吸收截止和红外吸收截止。

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