From steelmaking glass to athermal glass

从炼钢玻璃到无热玻璃

• 批准号: 18360366
• 负责人: SUSA Masahiro
• 金额: $ 11.74万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18360366/
• 关键词: アサーマルガラス; シリケート; 屈折率; 線膨張係数; 光路長; 温度依存性; TiO_2-Na_2O-SiO_2; シリケートガラス; TiO_2-Na_2O-B_2O_3-SiO_2; 屈折率の温度係数; エリプソメータ; レーザ顕微鏡

Optical communication by the wavelength division multiplexing technique requires the arrayed waveguide grating device for merging and dividing various optical signals. This device should be made of 'athermal glass' which shows no temperature dependence in the optical path length. One of the candidate materials is multicomponent silicate glass, for which slags from steelmaking industries are expected to be used. In the present work, the refractive indices (n), their temperature dependencies (dn/dT) and the linear coefficients of thermal expansion (α) were determined for SiO_2 glasses with other oxide additions to evaluate the athermal characteristics. The glass of 80mol%SiO_2-5TiO_2-15Na_2O was found to have good athermal characteristic and could be a promising composition in practice owing to its lower melting temperature than SiO_2.

利用波分复用技术的光通信需要阵列波导光栅器件来合并和分割各种光信号。该装置应该由“无热玻璃”制成，其在光路长度中不显示温度依赖性。候选材料之一是多组分硅酸盐玻璃，预计将使用来自炼钢工业的炉渣。本文测定了SiO_2玻璃的折射率（n）、折射率与温度的关系（dn/dT）和线性热膨胀系数（α），以评价SiO_2玻璃的无热特性。80mol%SiO_2-5TiO_2-15Na_2O玻璃具有良好的非热性能，其熔化温度低于SiO_2玻璃，是一种很有应用前景的玻璃。

项目成果

Chemical State of Fluorine in Fluoro-aluminosilicate Slags in Glassy and Molten States from Perspective of Electronic Polarisability

从电子极化率角度观察玻璃态和熔融态氟铝硅酸盐渣中氟的化学状态

• 发表时间: 2007
• 期刊: Ironmaking & Steelmaking 34,[5]
• 作者: Shakhawat H FIROZ;Rie ENDO;Masahiro SUSA
• 通讯作者: Masahiro SUSA

アルカリ・アルカリ土類シリケートガラスの屈折率および線膨張係数の測定

碱/碱土硅酸盐玻璃折射率和线膨胀系数的测定

• 发表时间: 2007
• 作者: 遠藤理恵;宮下重和;須佐匡裕
• 通讯作者: 須佐匡裕

Refractive Index Measurements of CaF2 Single Crystal and Melt by Ellipsometry

采用椭圆光度法测量 CaF2 单​​晶和熔体的折射率

• 发表时间: 2008
• 期刊: High Temperatures-High Pressures 37
• 作者: Shakhawat H FIROZ;Takashi SAKAMAKI;Rie KOJIMA ENDO;Masahiro SUSA
• 通讯作者: Masahiro SUSA

アルカリシリケートガラスの屈折率の組成依存性

碱金属硅酸盐玻璃折射率的成分依赖性

• 发表时间: 2006
• 作者: 宮下重和;草野喬介;遠藤理恵;須佐匡裕
• 通讯作者: 須佐匡裕