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"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"1: Crystallography and Crystal imperfection"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example number 1.1, Page number 40"
]
},
{
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"input": [
"#importing modules\n",
"import math\n",
"from __future__ import division\n",
"\n",
"#Variable declaration\n",
"n=4; #number of atoms per unit cell(FCC)\n",
"M=63.54; #atomic weight of Cu(gm)\n",
"N=6.023*10**23; #avagadro number(per g mole)\n",
"d111=2.08; #interplanar spacing(angstrom)\n",
"h=1;\n",
"k=1;\n",
"l=1;\n",
"\n",
"#Calculation\n",
"d111=d111*10**-8; #interplanar spacing(m) \n",
"a=d111*math.sqrt((h**2)+(k**2)+(l**2)); \n",
"D=(n*M)/(N*(a**3)); #density of Cu(g/cc)\n",
"\n",
"#Result\n",
"print \"density of Cu metal is\",round(D,3),\"g/cc\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"density of Cu metal is 9.024 g/cc\n"
]
}
],
"prompt_number": 1
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"metadata": {}
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|
