l-01 - intro and outline

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ES 260: MATERIALS SCIENCE I

Course Outline

PoliciesIntroduction to Materials Science

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ES 260 Materials Science - I

Classes: Tuesday, Thursday 9.30 AM 10:45 AM,

SC 160

Instructor: Dr. Milani Sureka Sumanasooriya

([email protected])

Office Rowley 107

Office Hours: Tuesday, Thursday 11AM 12.30 PM,

or by appointment

Grader and help sessions:TBA

Course information: available in moodle

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mailto:[email protected]:[email protected]


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Course Material

Fundamentals of Materials Science &Engineering: William D. Callister

4th edition

Can be bought online at wileyplus.com for

40% of textbook price Includes complete online version of

textbook

Handouts in the Class

Handouts are not a substitute for thetextbook

Handouts can help you focus on theimportant aspects

Note taking in the class is stronglyencouraged

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Course Material -with WileyPLUS

Homework assignments with instant feedback and

hints

Computer graded self-help problems

Hotlinks in homework to supporting text sections

Quizzes

https://www.wileyplus.com/WileyCDA/resources-and-support/students/register.html

Website: http://www.wileyplus.com

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https://www.wileyplus.com/WileyCDA/resources-and-support/students/register.htmlhttps://www.wileyplus.com/WileyCDA/resources-and-support/students/register.htmlhttp://www.wileyplus.com/http://www.wileyplus.com/http://www.wileyplus.com/https://www.wileyplus.com/WileyCDA/resources-and-support/students/register.htmlhttps://www.wileyplus.com/WileyCDA/resources-and-support/students/register.htmlhttps://www.wileyplus.com/WileyCDA/resources-and-support/students/register.htmlhttps://www.wileyplus.com/WileyCDA/resources-and-support/students/register.htmlhttps://www.wileyplus.com/WileyCDA/resources-and-support/students/register.htmlhttps://www.wileyplus.com/WileyCDA/resources-and-support/students/register.htmlhttps://www.wileyplus.com/WileyCDA/resources-and-support/students/register.htmlhttps://www.wileyplus.com/WileyCDA/resources-and-support/students/register.html


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Getting Started

Step 1: Get the Registration Code Option 1: Use WileyPLUS in place of the hard copy textbook and

save!

Go to www.wileyplus.com to purchase immediately.

Option 2: Buy a new textbook in the bookstore packaged with a

WileyPLUS registration code.

Once you purchase your WileyPLUS registration code, you will need to

register for WileyPLUS.

Step 2: Copy and paste the specific Class Section URL

listed below into your browser. Class Section Name - Fall 2013 Section 1

Class Section URL -http://edugen.wileyplus.com/edugen/class/cls355004/ .

Step 3:Click on the REGISTER button to start.

Need more info? Visit www.wileyplus.com/register. 5
http://edugen.wileyplus.com/edugen/class/cls355004/http://edugen.wileyplus.com/edugen/class/cls355004/http://edugen.wileyplus.com/edugen/class/cls355004/http://edugen.wileyplus.com/edugen/class/cls355004/


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Website: http://www.wileyplus.com/college/callisterStudent Companion Site VMSE

Comprised of 8 interactive modules

Atomic/molecular stuctures - 3D perspectives (better

visualizations) using click-and-drag rotations

Demonstrations of defects and phenomena that

exist/occur in materials

Demonstrations of material tests - performance and results

Database of material property values and costs

Virtual Materials Science &

Engineering (VMSE)

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Course Logistics

SyllabusGeneral overall outline, will follow the dates and

topics as closely as possible

Policies

Attendance: Fundamental course that leads into

many of the courses in your specialization

In class quizzes

Weekly Homeworks Please turn it in time mustbe submitted in WileyPlus

Exams 3 exams of 1 hour and 30 min duration,

given in the evenings, dates and times (tentative) in

the course outline sheet. 8


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Grading Policy

Letter grades A>90; B+: 85-89; B: 80-84; C+:75-79; C: 70-74; D+: 65-69; D: 60-64, F


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What can you expect from ES

260

You will learn aboutMaterial structure

How structure dictatesproperties

How processing can changematerial structure (and thusproperties)

Ultimately, you will be able to

Use the right materials for

the right purposeRealize new design

opportunities with materials

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Why Study Materials Science ?

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Historical Importance

Materials Science is one of the oldestforms of engineering and applied science

Ages are defined by the materials used

during those periodsStone age, Bronze age, Steel age

This is one of the fastest emerging areas

Smart materials, Nanotechnology

http://en.wikipedia.org/wiki/Materials_scien

ce

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http://en.wikipedia.org/wiki/Materials_sciencehttp://en.wikipedia.org/wiki/Materials_sciencehttp://en.wikipedia.org/wiki/Materials_sciencehttp://en.wikipedia.org/wiki/Materials_science


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Types of Materials

Metals:

Strong, ductile

High thermal & electrical conductivity

Opaque, reflective.

Polymers/plastics: Covalent bonding sharing of es

Soft, ductile, low strength, low density Thermal & electrical insulators

Optically translucent or transparent.

Ceramics: ionic bonding (refractory) compounds of metallic &

non-metallic elements (oxides, carbides, nitrides, sulfides) Brittle, glassy, elastic

Non-conducting (insulators)


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Materials in Buildings

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Structural Materials

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Materials for Bridges

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Materials in Transportation Structures

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http://www.michaelis.mynetcologne.de/images/gravel.jpg


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Materials in Transportation

Structures

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Materials in Historical Structures

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C it P l El t i l


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Composites, Polymers, Electrical

Materials

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M hi l t d


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Machine elements and

materials

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Metallic materials

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Composite materials

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So, Why Study Materials?

The more familiar an engineer or a scientist is with

various characteristics and structure-property

relations, as well as processing techniques of

materials, the more proficient he/she will be to make

judicious materials choices based on these criteria

[Callister]

To know what works for a certain case, you should

know what goes into making it

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Pro ides Options for the


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Provides Options for the

Designer

Material to satisfy the structural requirements

Load capacity

Predominant nature of the load (compression,

tension)

Weight restrictions Material to satisfy functional requirements

Thermal, Acoustic insulation, Electrical properties

Fire Resistance

Material to satisfy aesthetic requirements

Designablilty, Color

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Materials Science and Engineering

A Fundamental understanding of EngineeringMaterials and their behavior

Materials Science Relating the Structure and

Properties of Materials

Materials Engineering Designing or Engineeringa Material to satisfy a specific purpose (That

purpose is not just mechanical loads there is

more to materials than imposed loads)

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Structure of a Material

Arrangement of its internal

components

Subatomic electrons andnuclei

Atomic organization of

atoms Microscopic order of

microns (10-6m) seen througha microscope

Mesoscopic distinguishable

by the naked eye Macroscopic large scale

Meso Macro

MicroAtomic

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What Do We Mean by a
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What Do We Mean by a

Property?

Property Response to an imposed stimulusIndependent of shape and size

Mechanical Force dependent - Stress, Strain,Stiffness

Thermal Temperature dependent Heat Capacity

Electrical Electrical field dependent Resistivity

Optical - Light dependent Reflectivity, Refractiveindex

Magnetic Magnetic field dependent Chemical Constitution and Environment dependent -

Deterioration

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Processing Structure and


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Processing, Structure and

Properties

Processing can change the structure

Cooling rate can change the structure of steel Properties depend on material structure

Eg: Hardness of steel depends on its structure

Cooling Rate (C/s)

100

200300

400

500

600

0.01 0.1 1 10 100 1000

(a)

30 m

(b)

30 m

(d)

30 m(c)

4m

Hard

ness(BHN)

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Some important properties

MechanicalWill the material carry

the load?

Thermal

Will the material resist

the desired

temperature?

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Some important propertiesMagnetic

Magnetic Permeabilityvs. Composition:-- Adding 3 atomic % Si

makes Fe a better

recording medium!

Adapted from C.R. Barrett, W.D. Nix, and

A.S. Tetelman, The Principles of

Engineering Materials, Fig. 1-7(a), p. 9,

1973. Electronically reproduced

by permission of Pearson Education, Inc.,

Upper Saddle River, New Jersey.Fig. 18.23, Callister & Rethwisch 4e.

Magnetic Storage:

-- Recording medium

is magnetized by

recording head.

Magnetic Field

Magnetization Fe+3%Si

Fe

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Deteriorative Wear and tear, Corrosion

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The Material Selection Process

APPLICATION

PROPERTIES

MATERIALS

What am I using the

material for?

What properties do I need ?

Electrical / Mechanical /Thermal / Optical ?

What are the Processing

conditions? Sintering /

doping / annealing / forming

Choose the

Right material

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Core Problems:

Self-help Problems:

Announcements

Reading: Chapter 2

Register in WileyPlus asap:

l-01 - intro and outline

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