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符号函数矩阵判别法在水盐相图计算机成图中的应用Ⅰ.NaCl-KCl-H2O型W1-W2,X1-X2和m1-m2相图
APPLICATIONS OF THE SIGN FUNCTION MATRIXDISCRIMINATION METHOD TO COMPUTERPLOTTINGOF SALTWATER PHASE DIAGRAMS
【摘要】 作者曾提出关于多体系相图计算机成图的符号函数矩阵法(SFM).现以NaClKClH2O和KClKNO3H2O在101325Pa及298.15K条件下的相图为例,用这种方法处理了简单共饱型的三元水盐体系W1W2,X1X2,m1m2相图计算机成图中的几个关键问题,结果与实验事实完全吻合
【Abstract】 SFM(Sign Function matrix) discrimination method,a simple and universal method for computerplotting of multisystem phase diagrams,has been proposed.As an extension of the application of the method to saltwater systems from mineralrock systems,the method was used in the present work to deal with some key problems in computerplotting of W1W2,X1X2,m1m2 phase diagrams of a ternary saltwater system.The worked exemples are the plotting of phase diagrams of the NaClKClH2O and KClKNO3H2O systems at 101325Pa and 298.15K.The work was performed in the following sequence:(1) Creating matrix LLXq to determine the univariant scheme about the invariant point,which needs only a simple combination of every sign function value of [ΔrGm(i)/Xq]Xc with SN,the sign function matrix of stoichiometric numbers;(2) Creating matrix SD to group all curves,which can be achieved by selection of a reference curve (Pi) and comparisons of the corresponding elements in the ith row and the ith column of LLXq;(3) Determining the variable interval of the stable part of the reference curve by comparison of the coordinate values of two points;(4) Creating matrix LPXm to determine the varible interval of the stable part of every curve by a simple combination of the results of (2) and (3).The results are consistent with experimental data.
【Key words】 sign function matrix; saltwater system; computerplotting; matrix discrimination;
- 【文献出处】 四川大学学报(自然科学版) ,JOURNAL OF SICHUAN UNIVERSITY (NATURAL SCIENCE EDITION) , 编辑部邮箱 ,1998年04期
- 【分类号】O6-39
- 【被引频次】3
- 【下载频次】83