IR Practical Extinction Coefficients of Water in Alkali Lime Silicate Glasses Determined by Nuclear Reaction Analysis
IR Practical Extinction Coefficients of Water in Alkali Lime Silicate Glasses Determined by Nuclear Reaction Analysis
复制标题
核反应分析测定碱石灰硅酸盐玻璃中水的红外实用消光系数
DOI：
10.1111/jace.13568
复制
发表时间：
2015
影响因子：
3.9
通讯作者：
K. Fukutani
中科院分区：
文献类型：
--
作者：
Toshio Suzuki;J. Konishi;Kiyoshi Yamamoto;S. Ogura;K. Fukutani
红外光谱(IR)被广泛应用于玻璃中水含量的测定，而根据Beer-Lambert定律推算玻璃的绝对水含量，需要测定红外实际消光系数。根据核反应分析数据，成功地测定了不同钠钾比(Na/K)的碱性石灰硅酸盐玻璃的红外实际消光系数。众所周知，双波段法可用于测定某些碱石灰硅酸盐玻璃中的水浓度。证明了两带法不适用于碱石灰硅酸盐和钠钙铝硅酸盐玻璃的组成变化，而适用于相同组成的钠钙硅酸盐玻璃[SLS：组成(摩尔%)16Na2O·10CaO·74SiO_2]。具有红外实际消光系数的单波段程序对于精确测定各种玻璃成分中的水浓度是至关重要的，尽管红外实际消光系数的测定很麻烦。碱的离子半径影响玻璃的红外实际消光系数和羟基的化学状态。
Infrared spectroscopy (IR) is widely used to determine the water concentration in glasses, whereas determination of the IR practical extinction coefficient is necessary to deduce the absolute water concentration of glasses on the basis of Beer–Lambert law. From the nuclear reaction analysis data, the IR practical extinction coefficients of water were successfully determined for the alkali lime silicate glasses with different levels of sodium/potassium cation (Na/K) ratio. The two-band method is well-known to be useful for the determination of the water concentration in some alkali lime silicate glasses. It is proved here that the two-band method is not applicable to the variety of composition for alkali lime silicate and soda lime aluminosilicate glasses, whereas it is valid for the similar composition of soda lime silicate glasses [SLS: Composition (in mol%) 16Na2O·10CaO·74SiO2]. The single-band procedure with the IR practical extinction coefficient is crucial for the determination of the precise water concentration in the wide variety of glass composition although the determination of the IR practical extinction coefficient is troublesome. It also appears that the ion radius of alkali affects the IR practical extinction coefficient and the chemical state of OH group in glasses.