This document provides an overview of the Materials Science Engineering course taught by Dr. Holly J. Moore. It outlines information about the learning management system, syllabus, schedule, textbooks, grading, and expectations. It also summarizes key topics to be covered in the course including the five main classes of materials, their typical properties, and the relationships between composition, nanostructure, microstructure, processing, and material properties. The document uses the example of the Challenger space shuttle accident to illustrate the importance of understanding how and why materials behave as they do.

1. Materials Science
Engineering
Dr. Holly J. Moore

2. Vista
Learning Management System
Syllabus
Schedule
Updated regularly
Homework will be available online

Solutions Manual in Lab
PowerPoint
Sample Tests

3. Contact Info
holly.moore@slcc.edu
Office hours
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
TBD
Room SI-021
Phone 957-4418

4. Text Book
The Science and Engineering of Materials
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Donald Askeland
5th Edition
The 4th Edition is also adequate
Try www.addall.com

5. Grading
4 tests at 100 pts each
Online quizes at 10 to 20 pts each
Turn in homework 5 times, for 20 pts each

No late homework is accepted!!!
Final at 200 pts
Lab Notebook – 8 labs @10 pts each

6. Extra Credit
Up to 50 pts of extra credit available
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
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Read Michael Crichton’s book Airframe and
write a “book report”.– 25 pts
Share a current event related to Materials
Science with the class – 10 pts
Bring in examples of engineering materials we
are discussing in class – 10 pts
Do an in class demonstration - variable

7. Extra Credit
Arrange a field trip or a guest speaker –
25 pts
Discuss other ideas with me.
Don’t wait until the last week of class.
Remember – the max is 50 pts.

8. Civil Engineers
We’ll finish at Midterm
You will only have three tests, plus a 100
pt final
Your maximum extra credit is 25 pts.
You are welcome to stay for the remainder
of the class for extra credit or just for
interest

9. Excel
You need to be able to use a spread sheet to do
some of the homework problems in the later
portions of the class
Feedback from the University of Utah
Need a book, or use the one on reserve in the
Math Lab.
Spreadsheet Tools for Engineers-Excel 97
Available from Amazon for ~$12

10. Materials Science
Chapter 0 and Chapter 1

11. Why Study Materials Science?
Everything is made out of something
The properties of the available materials
determine how it can be used
Recent advances have resulted in a wide
variety of new materials with new
properties that have changed how we
build things.
What are some examples?

12. Composites made with Carbon
Nanotubes
www.wikipedia.org
Bicycle used in the 2005 Tour de France –
the frame is made with a Carbon Nanotube
composite www.nanotechweb.org
Photomicrograph of an
electrically conductive Carbon
Nanotube – Polypropylene
composite
http://www.sciencedaily.com/images/2008/02/
080208182237.jpg

13. If you don’t understand how and
why materials behave the way they
do, design mistakes are inevitable

14. Shuttle Challenger
Click on picture to
see a movie
Bruce Weaver / AP file

15. Challenger Crew
Ellison S. Onizuka, Sharon Christa McAuliffe, Greg Jarvis, and Judy Resnik.
In the front row from left to right: Michael J. Smith, Dick Scobee, and Ron McNair.
The photo is S85-44253 from the Johnson Space Center, or GPN-2000-001173 at the Great Images in NASA

16. External Tank
Solid Rocket
Boosters
(SRB’s)
Orbiter
SRB’s were
designed and
manufactured
in Utah by
Morton-Thiokol
– now ATK
If you get a
chance, be
sure to attend
one of the
occasional test
firings at
Promontory

17. Stiffening Rings

19. Dr. Richard Feynman
Famously
demonstrated the
effect of cold on a
sample of the o-ring
material

20. What happened?
When the SRB was
pressurized, the joint bent –
as expected
Under normal temperatures
the o-ring would have
expanded to keep the seal
intact
The temperatures were too
cold – below the glass
transition temperature for the
rubber – so the rubber was
brittle
Hot gas blew past the o-ring,
ultimately resulting in failure
Some small o-rings

21. Overnight cold air
blasted the aft field
O-ring

22. Notice the puff of
black smoke
apparent at lift-off

23. The escaping
gas acted like
a blow torch
aimed at the
external tank

24. What does this have to do with
Materials Science?
In particular
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In this course we will learn about the effect of
temperature on material properties
We’ll talk about glass transition temperatures
in polymers, ceramics and metals
In general we’ll study how and why
materials behave the way they do –
something you’d better understand when
you are an engineer

25. We are interested in what
determines a material’s
properties and how to create
materials with the properties
we want

26. Properties a Designer Might Be
Interested In
Mechanical Strength
Ductility
Impact Resistance
Behavior at temperature extremes
Thermal Conductivity
Electrical Conductivity
Optical Properties
Corrosion Resistance

27. Key Relationships
Material properties depend on the
material microstructure, which in turn are
influenced by its composition,
nanostructure and processing
Composition Nanostructure
Microstructure Processing

28. Approach
Study microstructures, starting with the
smallest, and working up
Look at the effect of composition on
microstructure
Look at the effect of processing on
microstructure
Connect how microstructure relates to
properties

29. Where to Start?
The atom
Atomic bonding
The different ways that atoms bond to
each other affects their properties
The different classes of materials are
different because they are bonded
together differently

30. 5 classes of materials
Metals
Ceramics
Polymers
Composites
Semiconductors
I’ll ask you this on a test
Even without studying these
materials you probably have a
pretty good idea of how they
behave

31. What Properties are
Characteristic of each
Material Type?

32. Metals
Ceramics
Polymers
Strong
Strong
Usually not strong
Ductile
Brittle
Very ductile
Electrical
Conductor
Electrical Insulator
Electrical Insulator
Heat Conductor
Thermal Insulator
Thermal Insulator
Not transparent
May be transparent
Not transparent
Shiny
Heat Resistant
Low Densities

33. Composites are a combination of
properties
Semiconductors have unique
electrical properties

34. We’ll focus on Metals, and Ceramics
Move on to polymers and composites
Leave Semiconductors for another class

35. Design Thought Exercise
In closing today let’s do a design thought
exercise – from a materials science point
of view

36. How Would You Design a
Coffee Cup?
Criteria
Available Materials
Cost

38. For Next Time
Read and review Chapter 1
Read Chapter 2