Materials Science: Unit I: Crystallography

Anna University Solved Problems [lattice constant]

Crystallography | Materials Science

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Anna University Solved Problems with solution: Crystallography - Materials Science

ANNA UNIVERSITY SOLVED PROBLEMS

Problem 1.3

Calculate the lattice constant of Fe.

Given: density of iron 7860 kg/m3, atomic weight 55.85 and Avagadro's number 6.023 × 1026 atoms/mol

Given data

Density of iron ρ = 7860 kg m-3

Atomic weight M = 55.85

Avagadro's number N = 6.023 × 1026 mol-1

Number of atoms per unit cell (BCC) = 2

Solution

We know that

Substituting the given values, we have

Taking cube root on both sides, we have

Materials Science: Unit I: Crystallography : Tag: : Crystallography | Materials Science - Anna University Solved Problems [lattice constant]

Home | Department: Mech Department | Ist Year | Subject: Materials Science |

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Materials Science: Unit I: Crystallography

Crystallography - Definition, Crystal Systems, Crystal Structure, Characteristics

Crystal Structures

Body-centred Cubic (BCC) Structure - Atoms per unit cell, Coordination number, Atomic radius, Packing factor, Examples

Face-centred Cubic (FCC) Structure - Atoms per unit cell, Coordination number, Atomic radius, Packing factor, Examples

Hexagonal close-packed (HCP) Structure - Atoms per unit cell, Coordination number, Atomic radius, Packing factor, Examples

Directions in Crystal

Planes in Crystals - Definition, Procedure for finding Miller indices, Density of Crystal

Linear Density and Planar Density - with Solved Example Problems | Crystallography

Anna University Solved Problems [lattice constant] - Crystallography | Materials Science

Crystal Imperfections - Definition, Classification, Point Defects and its types, example

Line Defects or Dislocations - Types

Burger's Vectors - Crystallography

Elastic Strain Energy - Crystallography

Plastic Deformation Mechanisms - Types: Slip, Twinning

Slip Systems in FCC & BCC Crystals

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