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authorpriyanka2015-06-24 15:03:17 +0530
committerpriyanka2015-06-24 15:03:17 +0530
commitb1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch)
treeab291cffc65280e58ac82470ba63fbcca7805165 /1367/CH6
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-rwxr-xr-x1367/CH6/EX6.1/6_1.sce15
-rwxr-xr-x1367/CH6/EX6.1/6_1r.txt4
-rwxr-xr-x1367/CH6/EX6.2/6_2.sce13
-rwxr-xr-x1367/CH6/EX6.2/6_2r.txt4
-rwxr-xr-x1367/CH6/EX6.4/6_4.sce17
-rwxr-xr-x1367/CH6/EX6.4/6_4r.txt12
-rwxr-xr-x1367/CH6/EX6.5/6_5.sce13
-rwxr-xr-x1367/CH6/EX6.5/6_5r.txt4
8 files changed, 82 insertions, 0 deletions
diff --git a/1367/CH6/EX6.1/6_1.sce b/1367/CH6/EX6.1/6_1.sce
new file mode 100755
index 000000000..ee12dfcf2
--- /dev/null
+++ b/1367/CH6/EX6.1/6_1.sce
@@ -0,0 +1,15 @@
+//Find No. of Frenkel defect
+//Ex:6.1
+clc;
+clear;
+close;
+na=6.023*10^23;//Avagadro's no.
+p=3170;//density in kg/m^3
+mw=7.9*10^-2;//molecular weight of CaF2
+nl=na*p/mw;//calcium ions/cubic m
+ni=2*nl;// /cubic m
+t=1300;//in K
+ef=2.7*1.6*10^-19;//energy of formation of one frenkel defect
+k=1.38*10^-23;//boltzmann constant
+nf=sqrt(nl*ni)*exp(-ef/(2*k*t));//in /cubic m
+disp(nf,"No. of Frenkel defect per unit volume of Calcium Fluoride (in /m^3) = "); \ No newline at end of file
diff --git a/1367/CH6/EX6.1/6_1r.txt b/1367/CH6/EX6.1/6_1r.txt
new file mode 100755
index 000000000..204c5def5
--- /dev/null
+++ b/1367/CH6/EX6.1/6_1r.txt
@@ -0,0 +1,4 @@
+
+ No. of Frenkel defect per unit volume of Calcium Fluoride (in /m^3) =
+
+ 2.017D+23 \ No newline at end of file
diff --git a/1367/CH6/EX6.2/6_2.sce b/1367/CH6/EX6.2/6_2.sce
new file mode 100755
index 000000000..94a49c572
--- /dev/null
+++ b/1367/CH6/EX6.2/6_2.sce
@@ -0,0 +1,13 @@
+//Calculate Ratio of no. of vacancies
+//Ex:6.2
+clc;
+clear;
+close;
+r=8.314;// J/mol K
+t1=300;//in K
+ent=168*10^3;//enthalpy of formation of vacancy in J/mol
+x1=exp(-ent/(r*t1));//x1=n/Na
+t2=1000;//in K
+x2=exp(-ent/(r*t2));//x2=n/Na
+rt=x1/x2;//ratio
+disp(rt,"Ratio of no. of vacancies = "); \ No newline at end of file
diff --git a/1367/CH6/EX6.2/6_2r.txt b/1367/CH6/EX6.2/6_2r.txt
new file mode 100755
index 000000000..0cbdf40ad
--- /dev/null
+++ b/1367/CH6/EX6.2/6_2r.txt
@@ -0,0 +1,4 @@
+Ratio of no. of vacancies =
+
+ 3.336D-21
+ \ No newline at end of file
diff --git a/1367/CH6/EX6.4/6_4.sce b/1367/CH6/EX6.4/6_4.sce
new file mode 100755
index 000000000..31328632c
--- /dev/null
+++ b/1367/CH6/EX6.4/6_4.sce
@@ -0,0 +1,17 @@
+//Find Elastic Strain Energy
+//Ex:6.4
+clc;
+clear;
+close;
+v=0.31;//poisson's ratio
+bv=.25*10^-9;//burger's vector in m
+ri=1.1*10^-9;//in m
+r0=10^5*bv;//in m
+sm=45*10^9;//shear modulous in n/sqm
+gb_2=sm*bv^2;
+u_ed=(gb_2/(4*3.14*(1-v)))*log(r0/ri);
+disp(u_ed,"Elastic Strain Energy of Edge dislocation (in J/m) = ");
+u_sd=(gb_2/(4*3.14))*log(r0/ri);
+disp(u_sd,"Elastic Strain Energy of Screw dislocation (in J/m) = ");
+r=u_ed/u_sd;//ratio
+disp(r,"Ratio of energies of edge dislocation over screw dislocation = "); \ No newline at end of file
diff --git a/1367/CH6/EX6.4/6_4r.txt b/1367/CH6/EX6.4/6_4r.txt
new file mode 100755
index 000000000..782650478
--- /dev/null
+++ b/1367/CH6/EX6.4/6_4r.txt
@@ -0,0 +1,12 @@
+
+ Elastic Strain Energy of Edge dislocation (in J/m) =
+
+ 3.255D-09
+
+ Elastic Strain Energy of Screw dislocation (in J/m) =
+
+ 2.246D-09
+
+ Ratio of energies of edge dislocation over screw dislocation =
+
+ 1.4492754 \ No newline at end of file
diff --git a/1367/CH6/EX6.5/6_5.sce b/1367/CH6/EX6.5/6_5.sce
new file mode 100755
index 000000000..2575e93a6
--- /dev/null
+++ b/1367/CH6/EX6.5/6_5.sce
@@ -0,0 +1,13 @@
+//Calulate Total no. of created vacancies
+//Ex:6.5
+clc;
+clear;
+close;
+r=1.7*10^-10;//atomic radius in m
+n1=10^-3;//1mm=10^-3m
+a=2*r;//in m
+n=n1/a;
+ed=2*10^-6;//edge dislocation in m
+ns=ed/a;
+nv=n*ns;
+disp(nv,"Total no. of created vacancies = "); \ No newline at end of file
diff --git a/1367/CH6/EX6.5/6_5r.txt b/1367/CH6/EX6.5/6_5r.txt
new file mode 100755
index 000000000..e8df26723
--- /dev/null
+++ b/1367/CH6/EX6.5/6_5r.txt
@@ -0,0 +1,4 @@
+Total no. of created vacancies =
+
+ 1.730D+10
+ \ No newline at end of file