金属学报  1981, Vol. 17 Issue (4): 454-460

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硅酸盐熔体聚合度的确定及其应用

窦士学;刘化坤

东北工学院;东北工学院

DETERMINATION OF EQUILIBRIUM CONSTANT FOR SILICATE MELT POLYMERIZATION AND ITS APPLICATION

by Dou Shixue and Liu Huakun (Northeast Institute of Technology)

窦士学;刘化坤. 硅酸盐熔体聚合度的确定及其应用[J]. 金属学报, 1981, 17(4): 454-460.
, . DETERMINATION OF EQUILIBRIUM CONSTANT FOR SILICATE MELT POLYMERIZATION AND ITS APPLICATION[J]. Acta Metall Sin, 1981, 17(4): 454-460.

摘要 参考文献 相关文章 Metrics 全文: PDF(539 KB)   摘要: 本文发现表征硅酸盐熔体聚合度的平衡常数与金属离子有效核电荷与原子实半径之比、形成金属离子的最后电离势及Allred-Rochow电负性之间存在良好的对应关系。由此所建立的参数方程可估计某些二元硅酸盐熔体的聚合平衡常数,与聚合理论的表达式结合,计算了金属氧化物的活度、硅酸盐阴离子分布以及平均链长等性质。由所得结果可以解释和预期熔体的某些物理性质。理论计算的结果与实验值一致。 Abstract：An attempt was made to ascertain the correlation of equilibrium constant of the polymerization of binary silicate melts with the chemical bond parameters such as ratio of the effective nuclear charge of metallic ion to its radius, as well as the ionization potential and electronegativity in Allred-Rochow scale. The three-parameter equation derived was employed to estimate the equilibrium constant by which the polymerization of certain binary silicate systems is characterized. It was also evaluated the activities of metallic oxides, the anion distribution in silicate and mean chain length, etc. in connexion of expression of polymerization.The result is shown that both free oxygen ion concentration and degree of silicate polyanion polymerization increase with the increase of the charge-radious ratio, ionization potential and electronegativity in Allred-Rochow scale.Fair agreement of the calculated values of activities was found with the experiment data. This may be available to predict some properties of silicate melts. 收稿日期: 1981-04-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 窦士学 刘化坤 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1981/V17/I4/454 [1] Flory, P. J., Principles of Polymer Chemistry, Cornell University Press, New York, 1953． [2] Frincham, C. J. B. and Richardson, F. D., Proc, R. Soc., 223 (1954) , 40, [3] Toop, G. W. and Samis, C. S., Trans. Metall. Soc. AIME 224 (1962) , 878． [4] Masson, C. R., Canada, N. S., Proc. R. Soc., Ser. A, 287 (1965) 201． [5] Whiteway, S. G., Smith, I. B. and Masson, C. R., Can. J. Chem., 48 (1970) , 33． [6] Masson, C. R., Smith, I. B. and Whiteway, S. G., Can. J. Chem., 48 (1970) , 201． [7] Ibid, 45 (1970) , 1457． [8] Yokokawa, T. and Niwa, K., Trans. Jpn. Inst. Met., 10 (1969) , 3． [9] Von Kapoor, M. L. and Frohberg, M. G., Arch. Eisenhuettenwes., 41 (1970) , 1035． [10] Gaskell, D. R., Metall. Trans., 8B (1977) , 131． [11] Masson, C. R., J. Iron Steel Inst., 210 (1972) , 89． [12] Balta, P. and Balta, F., Roum. Chim. 16 (1971) , 1537． [13] Allred, A. L. and Rochow, E. G., J. Inorg. Nucl. Chem., 5 (1958) , 264． [14] Sakawa, M. and Masson, C. R., Trans. Iron Steel Inst. Jpn., 18 (1978) , 173． [15] Richardson, F. D. and Webb, L. E., Bull Inst. Min. Metall., (1955) , № 583 529． [16] Morgan, R. A. and Hummel, F. A., J. Am. Ceram. Soc., 32 (1949) , 250．z No related articles found! Viewed Full text Abstract Cited   Shared      Discussed