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Investigation of Glass Formation and the Properties of Lanthanum-Aluminum-Borosilicate Glasses with High Lanthanum Oxide Content

机译:高镧氧化物含量的玻璃形成及镧 - 铝 - 硼硅酸盐玻璃的性能

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摘要

The possibility of glass formation in the four-component system La2O3-Al2O3-B2O3-SiO2 with La2O3 molar content 27% was studied. The ratios of the components for which the glasses are most stable with respect for amorphous phase separation and crystallization were determined. The composition range bounded by the limit values of the molar content of the components 7 - 30 SiO2, 8 - 25 Al2O3, and 32 - 50 B2O3 makes it possible to obtain glass with refractive index n(D) to 1.74, dispersion coefficient v(D) to 57, and density 4.15 g/cm(3). The manufacturability of these glasses creates the prerequisites for developing materials with different combinations of optical constants by modifying the matrix with a wide range of dopants.
机译:研究了具有La2O3摩尔含量的四组分体系La2O3-Al2O3-B2O3-SiO 2中玻璃形成的可能性27%。 确定玻璃对非晶相分离和结晶最稳定的组分的比率。 由组分7-30SiO 2,8-25Al2O3和32-50b2O3的摩尔含量的限制值限制的组成范围使得可以获得折射率N(d)至1.74,分散系数V( d)至57,密度为4.15g / cm(3)。 这些玻璃的可制造性通过通过各种掺杂剂修饰基质来产生具有不同组合的材料的先决条件。

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