MATERIAL SCIENCE HONORS Material Performance

What Material Scientists Do ☺

Properties of Materials Chemical Properties Color, Density, Size, Magnetism, Melting and Boiling points, Crystal Structure, Luster, Viscosity Workability, Brittleness, Hardness, Elasticity, Plasticity, Toughness, Strength Conductivity, Specific Heat, Thermal Expansion Burning Reaction to Acids/Water Corrosion/OxidationReduction Physical Properties Properties of Materials Mechanical Properties Thermal Properties

What Material Scientists Do ☺

Synthesis of New Materials The 20th century witnessed an explosion in the development of synthetic materials, as well as the creation of new combinations of materials to achieve desired physical effects.

Desired Performance Now there is a whole new generation of novel materials with specifically with specifically tailored properties.

Desired Material Performance Strength

Strength

Improving Strength

Bond metal to remaining bone. Improving Strength Bond metal to remaining bone.

Regular bone cement is brittle & lasts only for a few years! Improving Strength Regular bone cement is brittle & lasts only for a few years!

Improving Strength How to bond the metal to the remaining bone. Regular bone cement is brittle and last only for a few years! Add a porous metal powder to the cement causes a rough surface to rub against the bone causing bone growth that forms a more permanent intertwining between bone and metal.

Strength vs. Temperature

Strength vs. Temperature

Desired Material Performance Strength Flexibility

Flexibility

Stress vs. Strain Modulus of Elasticity (Young’s Modulus) Elastic Limit 2-4 Permanent Deformation

Stress vs. Strain Metals Ceramics Stress Polymers Strain

Tough Tubes! The Nanotube !

Even after 500,000 compressions, the nanotube block retained its original shape and mechanical properties. Original 500,000X +

Desired Material Performance Strength Flexibility Wear

Wear At the Indianapolis Motor Speedway, excessive tire wear caused six competition cautions.

The speedway has grooves ground into the surface for grip.

The new tires’ rubber turned to dust and didn’t fill in the grooves like years past!

Desired Material Performance Strength Flexibility Wear Cost

Cost $/pound.

steel aluminium magnesium plastics

Improving Performance

Desired Material Performance Strength Flexibility Wear Cost Effects on Environment

Effects on the Environment

Replace metal alloy blades with those made of ceramics- allow higher operating temperatures.

Research Project #1 Wind Belt

Research Project #1

Professor Aaron Mazzeo PhD Mazzeo Group Professor Aaron Mazzeo PhD

What Turns The Wheel?

Greenhouse Gases

What Turns The Wheel?

Wind Turbine

Conventional wind generators with rotating blades do not scale down well.

Due to high friction of moving parts and other mechanical components, size does matter!

Wind Belt

Wind belt is a vibrating membrane that can generate electricity.

Wind belts do not require any mechanical moving parts so they do scale down well.

This small wind belt generator produces power sufficient for battery charging.

While enjoying the outdoors, your wind belt generator can easily recharge your portable radio, iPod, iPad, cell phone, small LED flashlight and much more.

This smaller wind belt can be used in situations where conventional wind generator would normally fail to give useful power output.

Wind belts are particularly suited to providing electricity in isolated areas of the developing world.

Where solar or conventional wind power are too costly or simply inaccessible.

Design & construct a small scale, low-cost wind belt. Research Project #1 Objective #1 Design & construct a small scale, low-cost wind belt.

Research Project #1 Objective #2 Test the performance of different types of materials have on the overall power output of the wind belt.

Research Project #1 Title Page Title Name(s) Date

Research Project #1 Page 1 PROBLEM Test the performance of different types of materials have on the overall power output of the wind belt.

Research Project #1 Page 2 ABSTRACT Sustainable Energy Wind Belt Operation Deflection

Research Project #1 Page 3 ANAYSIS Best Material Tested Judgment Criteria

Research Project #1 Page 4 DATA Group Data Chart Group Graph (Bar)

Research Project #1 Page 5 MATERIALS

Research Project #1 Page 6 PROCEDURES

Old School!

Athletic Footwear of Today .

What Material Scientists Do ☺

RESEARCH PROJECT #2 Sneaker Science

RESEARCH PROJECT #2

Energy Absorption

Friction Testing

Friction Testing

Friction Testing

Coefficient of Static Friction Project Goals Coefficient of Static Friction

Coefficient of Static Friction Coefficient of Sliding Friction Project Goals Coefficient of Static Friction Coefficient of Sliding Friction

Coefficient of Kinetic Friction

Coefficient of Static Friction Coefficient of Sliding Friction Project Goals Coefficient of Static Friction Coefficient of Sliding Friction Young’s Modulus

Instrom

Laser Lever

Laser Lever As weight is added to the piston (stress), the reflected laser beam measures the displacement (strain).