The density of potassium borate glasses related to atomic arrangements
The density of potassium borate glasses related to atomic arrangements
复制标题
硼酸钾玻璃的密度与原子排列有关
DOI：
10.1016/s0022-3093(87)80343-5
复制
发表时间：
1987
影响因子：
3.5
通讯作者：
G. Sumcad
中科院分区：
文献类型：
--
作者：
Hunhwa Lim;Ajoy Karki;S. Feller;J. Kasper;G. Sumcad
硼酸钾玻璃的密度是在极宽的碱含量范围内测量的：从氧化硼到原硼酸盐组合物。与硼酸锂和硼酸钠一样，半经验模型已应用于密度以确定存在的结构单元的体积。这些计算值与锂和钠案例中发现的体积一起用于对单元的填充分数的一般讨论。这些分数表明，当从锂到钠再到钾时，结构分组的尺寸增加主要是由于使用了碱，并且每种硼氧构型都存在相同的体积。
Densities of potassium borate glasses have been measured over an extremely wide range of alkali content: from boron oxide through the orthoborate composition. As with the lithium and sodium borates a semiempirical model has been applied to the densities in order to determine the volumes of the structural units present. These calculated values, in conjunction with volumes found in the lithium and sodium cases, were used in a general discussion of the packing fractions of the units. The fractions indicate that the size increase of the structural groupings as one goes from lithium to sodium to potassium is primarily due to the alkali being used and that the same volumes are present for each of the boron oxygen configurations.