金属学报  1986, Vol. 22 Issue (5): 69-77

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一个新的聚合模型在CaO-SiO_2熔体中的应用

王之昌;周继程;程兆年

中国科学院上海原子核研究所;中国科学院上海冶金研究所;中国科学院上海冶金研究所

A NEW POLYMERIZATION MODEL APPLYING TO LIQUID SILICATE SYSTEM CaO-SiO_2

WANG Zhichang (Shanghai Institute of Nuclear Research; Academia Sinica); ZHOU Jicheng; CHENG Zhaonian (Shanghai Institute of Metallurgy; Academia Sinica)

王之昌;周继程;程兆年. 一个新的聚合模型在CaO-SiO_2熔体中的应用[J]. 金属学报, 1986, 22(5): 69-77.
, , . A NEW POLYMERIZATION MODEL APPLYING TO LIQUID SILICATE SYSTEM CaO-SiO_2[J]. Acta Metall Sin, 1986, 22(5): 69-77.

摘要 参考文献 相关文章 Metrics 全文: PDF(642 KB)   摘要: 用严格正规阴离子亚晶格代替Whiteway-Smith-Masson(WSM)模型中理想阴离子亚晶格的假定,推导了二元硅酸盐熔体的四参数分支链聚合模型。对于大多数熔渣,该模型中三个交换能参数W_(01),W_(12)和C(C=W_(02)-W_(01))可假定都等于零;于是简化得一参数模型,即WSM分支链聚合模型,对于CaO-SiO_2熔渣,上述三个交换能参数可假定为相等但不为零,于是得两参数模型,取交换能参数W_(12)/RT=-0.023,热力学平衡常数Ko~(11)~0=0.0044,所得两参数模型能较好地解释1600℃时0.412≤N_(SiO_2)≤0.450范围内CaO-SiO_2熔渣的活度数据。 Abstract：The use of the s-regular anion sub-lattice assumption instead of the ideal anion sub-lattice one in the Whiteway, Smith and Masson (WSM) model leads to a four-parameter branched chain polymerization model for the binary silicate melts. For most slags investigated so far, three interchange energy parameters in the present model, W_(12), W_(o1) and C (C=W_(o2)-W_(o1)), could be assumed to be zero; then it becomes an one-parameter model, i.e. the WSM model. For the CaO-SiO_2 melts, the three above-mentioned parameters could be assumed to have the same value that does not equal zero. The new model is then converted into a twoparameter model. With the interchange energy parameter W_(12)/RT=-0.023 and the thermodynamical equilibrium constant K_(11)~0=0.0044 for the reaction SiO_4~(4-)+SiO_4~(4-)=Si_2O_7~(6-)+O~(2-) the new model is in better agreement with the experimental data on the activity in the CaO-SiO_2 melts at 1600℃ in the region of 0.412≤N_(SiO_2)≤0.450. 收稿日期: 1986-05-18      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 王之昌 周继程 程兆年 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I5/69 1 Masson, C.R., Proc. R. Soc., A287 (1965) , 201, 2 Masson, C.R., J. Am. Ceram, Soc., 51 (1968) , 134． 3 Whiteway. S.G.; Smith, I.B.; Masson. C.R., Can. J. Chem., 48 (1970) , 33, 4 Masson, C.R.; Smith, I.B., Whiteway, S. G., Can J. Chem., 48 (1970) , 1456． 5 邹元燨;周继程,徐元森,赵彭年,张子青,First China-USA Bilateral Metallurgical Conference.Beijing China,1981,p.61(Pteprint);金属学报,18(1982) .127． 6 Darken. L.S.; Gurry, R.W.. Physical Chemistry of Metals, McGraw-Hill, New York, 1953 p. 340． 7 Guggenheim, E.A., Mixtures, Clarendon Press, Oxford, 1952, p. 29． 8 Barin, I.; Knacke, O., Thermochemical Properties of Inorganic Substances, Springer-Verlag, Berlin. 1973． p. 174． 9 窦士学;刘化坤,金属学报,17(1981) ,454． 10 刘洪霖;陈念贻等;私人通讯,(1983) . No related articles found! Viewed Full text Abstract Cited   Shared      Discussed