Science and Technology Science and Technology through through

Materials Materials

ASM Materials Education Foundation

Science and Technology through MaterialsScience and Technology through MaterialsCarnegie Mellon UniversityCarnegie Mellon University

AndAnd

ASM InternationalASM InternationalSupporting the standards of the Supporting the standards of the Pennsylvania Department of EducationPennsylvania Department of Education

Course creation under the guidance of:

Your Daily Life Is Filled with Stuff.Your Daily Life Is Filled with Stuff. Did you ever think about where stuff

came from? Did you ever think about how stuff is

made?

Consider a Typical Class Room DeskConsider a Typical Class Room DeskMetal & Plastic• Chrome-plated Steel Tubes Provide the

Basic Structure• Plastic or Composite (Plastic + Fiber Glass

or other Filler) Seat & Desktop• Steel Fastners (Rivets, Screws, Bolts, Nuts)• Possibly other Metals and Plastics in the

Feet, Storage Shelf, etc.

Why Was the Desk Made of Why Was the Desk Made of Those Particular Materials?Those Particular Materials?

• Material Properties: Durability, Strength, Weight, and Others

• Appearance• Ease of Manufacture• COST

What is Materials Science?What is Materials Science?Materials Science Materials Science is the science of all materials –

including ceramics, composites, electronic materials, metals and polymers.

• Emphasis on the study of the physical and chemical properties of matter

• Materials Science is interdisciplinary – uses knowledge of physics, chemistry and biology applied to materials

• The materials scientist develops new materials, determines what materials to use, and how to process the material into a useful component; this is a critical part of all manufacturing

Role of Materials Science & Engineering in Industry

Materials Selection/ Product Design – What do you make your product from?– Metals– Polymers– Ceramics– Composites

Who Cares? • Industry!

– Companies rely on materials scientists to design materials for various applications

• Examples:– Automobiles, Cell Phones,

Computers, Sports equipment, aerospace

What are Materials?What are Materials?“Materials are Everything!”

• Computers• Cars

• Airplanes• Clothes

• Buildings• Bridges . . . .

Most engineered structures and commercial products are made from many different kinds of materials selected to satisfy the needs of the product.

Where Did the Manufacturer Get Where Did the Manufacturer Get the Materials?the Materials?

The Earth is the Answer. – The Metals are extracted from specific ores.– The Polymers are derived from Petroleum.– The Fiber Glass is made from specific ores.– All of the above may be recycled.

http://en.wikipedia.org/wiki/File:Chuquicamata-002.jpg

Open Pit Copper Mine

Another Factory is not a good answer!

Materials Scientists & Engineers Materials Scientists & Engineers Make & Improve Stuff!Make & Improve Stuff!

Scientists and Engineers Are Always Discovering New Concepts But How Do These Concepts Become Reality?•All Science & Engineering Developments Rely on Materials•“Scientists Discover New Worlds But Engineers Create Them”

So Why Study Materials Anyway?So Why Study Materials Anyway?

-Advancements in nearly every field of science and manufacturing depend upon the improvement and development of new materials

-Can you think of any examples?

-New materials are developed all the time, and developing them can make your company, and maybe you, some $$

What is MSE?What is MSE?

MSE is a field of Engineering - MSE stands for Materials Science and Engineering.

The field encompasses the spectrum of materials: • metals • ceramics • polymers (plastics) • semiconductors • combinations of materials called “composites”. • biomaterials

Most engineering and manufacturing fields have a bit of MSE in them!

Discipline of Materials Science & EngineeringDiscipline of Materials Science & Engineering Utilize Principles of Physics and Chemistry to

Understand and Advance Knowledge of Solid Materials

Traditional Areas: Metals, Polymers, Ceramics, Composites

Newer Areas continue to be developed! Examples: Biomaterials, Nanomaterials

Nanoparticle

Materials Scientists & Engineers Study the Materials Scientists & Engineers Study the Relationship Between Structure, Properties, Relationship Between Structure, Properties, and Processing of Materialsand Processing of Materials

Structure

Properties Processing

Materials

The Structure of Materials Is Examined in The Structure of Materials Is Examined in Terms of ScaleTerms of Scale

There Are Three Broad Size Ranges That Can Be Further Divided into Subsets

• Atomic Scale - How Individual Atoms Are Assembled and Bonded Together

• Cluster Scale - Clusters of Atoms from Nanometers to Micrometers

• Macro Scale - From Millimeters to Skyscrapers

Let’s begin our quest into this Let’s begin our quest into this investigation of Material Scienceinvestigation of Material Science

Please rewrite your comments in your Please rewrite your comments in your Journal regarding what you believe Journal regarding what you believe Material Science means….Material Science means….

Materials presented in the Powerpoint are from:•New Mexico Tech – Hirshfield presentation

•Kellam HS, Virginia Beach, Roger Crider•The Ohio State University

•ASM International, Cleveland Ohio•Carnegie Mellon University