论文标题
碱性玻璃杯中局部结构的演变
Evolution of Local Structures in Alkali-Borate Glasses
论文作者
论文摘要
我们分析了二进制阿尔卡利 - 孔玻璃中各种特征簇在修饰符浓度$ x $上的相对比例的依赖性。纯$ b_2o_3 $玻璃包含大量硼醇环和两者之间的一定数量的硼原子，通过氧键将硼醇环连接起来。 $ NA_2O $修饰符的添加创建了四协调的硼，但是由此产生的网络玻璃仍然完全连接。我们研究局部变换，从而导致创建新型构型，例如四位一体，五型生物，无动于衷等，并列出了类似于Lotka-Volterra模型的非线性差异系统。获得了$ x $的功能的各种本地混淆的最终密度曲线。然后评估平均刚度，使我们能够计算给定值$ x $的玻璃过渡温度$ t_g（x）$
We analyze the dependence of relative proportion of various characteristic clusters in binary alcali-borate glasses on modifier's concentration $x$. A pure $B_2O_3$ glass contains a huge amount of boroxol rings and some amount of boron atoms in between, linking the boroxol rings via oxygen bonds. The addition of the $Na_2O$ modifier creates four-coordinated borons, but the resulting network glass remains totally connected. We study local transformations that lead to creation of new configurations like tetraborates, pentaborates, diborates, etc., and set forth a non-linear differential system similar to the Lotka-Volterra model. The resulting density curves of various local confugurations as functions of $x$ are obtained. Then the average rigidity is evaluated, enabling us to compute the glass transition temperature $T_g(x)$ for a given value of $x$
