Engineering Materials and Metallurgy: Unit 0: Review of Crystal Physics

Classification of Crystal Imperfections (or Defects)

Crystal Physics

Home | Department: Mech Department | Subject: Engineering Materials and Metallurgy |
Next >>

Crystalline imperfections can be classified on the basis of their geometry as follows:

Classification of Crystal Imperfections (or Defects) 

Crystalline imperfections can be classified on the basis of their geometry as follows:

1. Point Defects

(a) Vacancies

(i) Schottky defect

(b) Interstitials

(i) Frenkel defect

(c) Impurities

(i) Substitutional impurity

(ii) Interstitial impurity

(d) Electronic defects

2. Line Defects

(a) Edge dislocation

(b) Screw dislocation

3. Surface (or planar) Defects 

(a) Grain boundaries

(b) Tilt or twist boundaries 

(c) Twin boundaries

(d) Stacking faults

4. Volume (or bulk) Defects

(a) Cracks

Now we shall discuss the above crystal imperfections, in detail, in the following sections.

Engineering Materials and Metallurgy: Unit 0: Review of Crystal Physics : Tag: : Crystal Physics - Classification of Crystal Imperfections (or Defects)

Home | Department: Mech Department | Subject: Engineering Materials and Metallurgy |
Next >>

Engineering Materials and Metallurgy: Unit 0: Review of Crystal Physics


Review of Crystal Physics - Introduction

Classifications of solids - Crystal Physics

Crystallographic Terms

Crystal Systems (or Types of Crystals)

Bravais Lattices - Crystal Physics

Summary of Bravais Lattices - Crystal Physics

Crystal symmetry - Crystal Physics

Simple crystal structures

Unit Cell Characteristics - Crystal Physics

Coordination Number - Definition, Calculation | Crystal Physics

Atomic Radius - Definition, Formula, Calculation | Crystal Physics

Atomic Packing Factor (APF) - Definition, Formula, Calculation | Crystal Physics

Void Space (or Interstitial Space) - Definition, Formula, Calculation | Crystal Physics

Relation between Lattice Constant (a) and Density (ρ) - Crystal Physics

Summary of Characteristics of the Unit Cells - Crystal Physics

Under Subject


Engineering Materials and Metallurgy

Engineering Materials and Metallurgy

ME3392 3rd semester Mechanical Dept | 2021 Regulation | 3rd Semester Mechanical Dept 2021 Regulation


Related Subjects


Transforms and Partial Differential Equations

Transforms and Partial Differential Equations

MA3351 3rd semester civil, Mechanical Dept | 2021 Regulation | 3rd Semester Mechanical Dept 2021 Regulation

Engineering Mechanics

Engineering Mechanics

ME3351 3rd semester civil, Mechanical Dept | 2021 Regulation | 3rd Semester Mechanical Dept 2021 Regulation

Engineering Thermodynamics

Engineering Thermodynamics

ME3391 3rd semester Mechanical Dept | 2021 Regulation | 3rd Semester Mechanical Dept 2021 Regulation

Fluid Mechanics and Machinery

Fluid Mechanics and Machinery

CE3391 3rd semester Mechanical Dept | 2021 Regulation | 3rd Semester Mechanical Dept 2021 Regulation

Engineering Materials and Metallurgy

Engineering Materials and Metallurgy

ME3392 3rd semester Mechanical Dept | 2021 Regulation | 3rd Semester Mechanical Dept 2021 Regulation

Manufacturing Processes

Manufacturing Processes

ME3393 3rd semester Mechanical Dept | 2021 Regulation | 3rd Semester Mechanical Dept 2021 Regulation