Science and Technology through Materials ASM Materials Education Foundation

Science and Technology through Materials Carnegie Mellon University And ASM International Supporting the standards of the Pennsylvania Department of Education Course creation under the guidance of:

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 Desk Metal & 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 Those Particular Materials? Material Properties: Durability, Strength, Weight, and Others Appearance Ease of Manufacture COST

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? “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 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. Open Pit Copper Mine Another Factory is not a good answer!

Materials Scientists & Engineers 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? -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? 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 & 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 Relationship Between Structure, Properties, and Processing of Materials Structure Properties Processing Materials

The Structure of Materials Is Examined in Terms 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 investigation of Material Science Please rewrite your comments in your Journal regarding what you believe 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