MLZ110 STRUCTURE OF MATERIALS

CH01: INTRODUCTION

Prof. Dr. Ramis Mustafa ÖKSÜZOĞLU

Res. Asst. Dr. Umut SAVACI

MLZ 110: Structure of Materials

Structure in Materials Science & Engineering

how structure dictates properties

how processing can change structure

This course will help you to:

• understand the structure of materials & symmetry operations

• get a hold of preliminary information for structural

characterizations

1. Pick Application Determine required Properties

2. Properties Identify candidate Material(s)

3. Material Identify required Processing

Processing: changes structure and overall shape

ex: casting, sintering, vapor deposition, doping

forming, joining, annealing.

Properties: mechanical, electrical, thermal,

magnetic, optical, deteriorative.

Material: structure, composition.

The Materials Selection Process

Properties

1. Pick Application Determine required PropertiesProperties: mechanical, electrical, thermal, magnetic, optical

Body: High strength

Lightweight

Easy to shape

Corrosion resistant

Tires: High grip

Wear resistant

Work between -20 to 50C

Windows: Transparent

Withstand stone impact

Safety

Properties

What are your applications?

Applications

Tile

Window

LCD screen

Touchscreen

Water Bottle

Coke Can

Structure

2. Properties Identify candidate Material(s)

Material: structure, composition.

Steel Vs Cast Iron

Steel

Fe+C (C<2 wt%)

Cast Iron

Fe+C (C>2 wt%)

Processing

https://www.youtube.com/watch?v=Z2HxWn6eP74

Side Windows Front Window

Glass Production

3. Material Identify required Processing

Processing: changes structure and overall shape

Processing

Liquid SiO2 at 1800C

Fast coolSlow cool

Ceramic/Crystal Glass/Amorphous

Al2O3

Processing

Iron at 900C

Water cooledAir cooled

Hard

BrittleSoft

Ductile

Same composition

Different

Microstructures

Materials Tetrahedron

• Basic crystal systems (2 & 3 dimensional lattices).

• Lattice properties: constants, planes and directions.

• Atomic packaging factor.

• Introduction to X-Ray Diffraction.

• Basic single-atom (metallic) crystal systems.

• Ceramic crystal systems: Interstitial sites.

• Crystal symmetries and symmetry groups

• Imperfections in Solids

• Project works.

Content

Course Evaluation

2 midterms

Final

Project work

Pop Quizzes

If your phone rings, you’ll be sent out of classroom

COURSE MATERIALS

Required text:• Materials Science and Engineering: An Introduction

W.D. Callister, Jr., 7th edition, John Wiley and Sons, Inc. (2007).

• Physical Properties of Crystals

(1985) - J.F.Nye.

Optional Material:

• A first course in Crystallography,

Alan H. Windle, London, G. Bell & Sons Ltd. (1977).

• Elements of X-Ray Diffraction

2nd Ed. (1978)- B.D.Cullity.

HOMEWORK !

Please read Chapter 1

from

Materials Science and Engineering: An Introduction