From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3557/CH17/EX17.15/Ex17_15.sce | 50 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 3557/CH17/EX17.15/Ex17_15.sce (limited to '3557/CH17/EX17.15/Ex17_15.sce') diff --git a/3557/CH17/EX17.15/Ex17_15.sce b/3557/CH17/EX17.15/Ex17_15.sce new file mode 100644 index 000000000..ffe787a5c --- /dev/null +++ b/3557/CH17/EX17.15/Ex17_15.sce @@ -0,0 +1,50 @@ +//Example 17.15// + +//(a) +y1=1190;// degree C //y1 coordinate of the location where the line crosses the y axis. +y2=1414;// degree C //y2 coordinate of the location where the line crosses the y axis. +x1=99.985;;// wt % //composition of Si +x2=100; //wt % // composition of Si +a=y2-y1;//(subracting y intercept of linear euation) +//mprintf("a = %i",a) +a1=x2-x1 //(subracting m slope of line of linear equation) +//mprintf("a1 = %f ",a1) +m=a/a1; //(Obtaining m value) +mprintf("m = %e ",m) +b=y2-m*x2; //(Obtaining b value) +mprintf("\nb = %e ",b) +y3=1360;//degree C //composition +x=(y3-b)/m +mprintf("\nx = %f ",x) +//The segregation coefficienct is calculated in terms of impurity levels +Cs=x2-x +mprintf("\nCs = %f wt percent Al",Cs) +x3=90;//percent //si composition +Cl=x2-x3; +mprintf("\nCl = %i wt percent Al",Cl) +K=Cs/Cl +mprintf("\nK = %e ",K) + +//(b) For the liquids line a similar staright line expression take place on the values +a4=y2-y3;//(subracting y intercept of linear euation) +//mprintf("a4 = %i",a4) +a5=x2-x3 //(subracting m slope of line of linear equation) +//mprintf("a5 = %f ",a5) +m1=a4/a5; //(Obtaining m value) +mprintf("\nm1 = %e ",m1) +b1=y2-m1*x2; //(Obtaining b value) +mprintf("\nb1 = %f ",b1) +//A 99 wt % Si bar will have a liquids temperature +x4=99;// +T=m1*(x4)+b1 +mprintf("\nT = %f degree C",T) +//The corresponding solids composition is given by +x5=(T-b)/m +mprintf("\nx1 = %f wt percent Si",x1) +//An alternate composition expression +x5=99.999638;//Wt % Si +c=100;//percent +i=(x2-x5)/c +mprintf("\ni = %e Al",i) +mprintf("\nor 3.62 parts per million Al") +mprintf("\nThese calculations are susceptible to round-off errors. Values of m and bin the solidus line equation must be carried to several palces") -- cgit