...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>European Journal of Glass Science and Technology, PartB. Physics and Chemistry of Glasses >Formation and properties of samarium aluminium/gallium borate glasses
【24h】

Formation and properties of samarium aluminium/gallium borate glasses

机译：mar铝/硼酸镓玻璃的形成和性能

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

The glass forming region,density,refractive index,thermal expansion coefficient and glass transformation temperature have been determined for samarium aluminoborate and galloborate glasses.The densities,refractive indices and thermal expansion coefficients of these glasses increase with increasing Sm_2O_3 concentration,while the glass transformation temperature is only slightly affected by changes in Sm_2O_3 concentration.Changes in Ga_2O_3 content alter the density much more than identical changes in Al_2O_3 content.Thermal expansion coefficients are essentially the same for the corresponding aluminoborate and galloborate glasses,with slight decreases in the thermal expansion coefficient with increases in either the Al_2O_3 or Ga_2O_3 concentration.Glass transformation temperatures are exceptionally high for borate glasses,with values approaching 740 deg C for the aluminoborate glasses and 670 deg C for the galloborate glasses.Two absorption bands due to samarium occur in the infrared spectrum of these glasses.The extinction coefficient for the band at 1075 nm due to Sm_2O_3 is 2.94 llmolcm.
机译：确定了硼酸铝硼酸盐和镓硼酸盐玻璃的玻璃形成区域，密度，折射率，热膨胀系数和玻璃化转变温度。这些玻璃的密度，折射率和热膨胀系数随着Sm_2O_3浓度的增加而增加，而玻璃化转变温度仅受Sm_2O_3浓度变化的影响很小。Ga_2O_3含量的变化对密度的改变远大于相同的Al_2O_3含量的变化。相应的铝硼酸盐和镓硼酸盐玻璃的热膨胀系数基本相同，随着温度的升高，热膨胀系数略有下降。 Al_2O_3或Ga_2O_3的浓度会增加。硼酸盐玻璃的玻璃转化温度异常高，铝硼酸盐玻璃的值接近740摄氏度，镓硼酸盐玻璃的值接近670摄氏度。sa中的两个吸收带在红外中发生Sm_2O_3导致的1075 nm波段的消光系数为2.94 llmolcm。

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