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MATERIAL SCIENCE HONORS
Material Performance
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What Material Scientists Do
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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
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What Material Scientists Do
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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.
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Desired Performance Now there is a whole new generation of novel materials with specifically with specifically tailored properties.
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Desired Material Performance
Strength
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Strength
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Improving Strength
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Bond metal to remaining bone.
Improving Strength Bond metal to remaining bone.
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Regular bone cement is brittle & lasts only for a few years!
Improving Strength Regular bone cement is brittle & lasts only for a few years!
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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.
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Strength vs. Temperature
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Strength vs. Temperature
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Desired Material Performance
Strength Flexibility
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Flexibility
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Stress vs. Strain Modulus of Elasticity (Young’s Modulus)
Elastic Limit 2-4 Permanent Deformation
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Stress vs. Strain Metals Ceramics Stress Polymers Strain
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Tough Tubes! The Nanotube !
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Even after 500,000 compressions, the nanotube block retained its original shape and mechanical properties. Original 500,000X +
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Desired Material Performance
Strength Flexibility Wear
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Wear At the Indianapolis Motor Speedway, excessive tire wear caused six competition cautions.
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The speedway has grooves ground into the surface for grip.
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The new tires’ rubber turned to dust and didn’t fill in the grooves like years past!
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Desired Material Performance
Strength Flexibility Wear Cost
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Cost $/pound.
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steel aluminium magnesium plastics
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Improving Performance
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Desired Material Performance
Strength Flexibility Wear Cost Effects on Environment
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Effects on the Environment
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Replace metal alloy blades with those made of ceramics- allow higher operating temperatures.
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Research Project #1 Wind Belt
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Research Project #1
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Professor Aaron Mazzeo PhD
Mazzeo Group Professor Aaron Mazzeo PhD
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What Turns The Wheel?
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Greenhouse Gases
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What Turns The Wheel?
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Wind Turbine
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Conventional wind generators with rotating blades do not scale down well.
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Due to high friction of moving parts and other mechanical components, size does matter!
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Wind Belt
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Wind belt is a vibrating membrane that can generate electricity.
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Wind belts do not require any mechanical moving parts so they do scale down well.
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This small wind belt generator produces power sufficient for battery charging.
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While enjoying the outdoors, your wind belt generator can easily recharge your portable radio, iPod, iPad, cell phone, small LED flashlight and much more.
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This smaller wind belt can be used in situations where conventional wind generator would normally fail to give useful power output.
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Wind belts are particularly suited to providing electricity in isolated areas of the developing world.
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Where solar or conventional wind power are too costly or simply inaccessible.
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Design & construct a small scale, low-cost wind belt.
Research Project #1 Objective #1 Design & construct a small scale, low-cost wind belt.
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Research Project #1 Objective #2
Test the performance of different types of materials have on the overall power output of the wind belt.
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Research Project #1 Title Page Title Name(s) Date
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Research Project #1 Page 1 PROBLEM
Test the performance of different types of materials have on the overall power output of the wind belt.
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Research Project #1 Page 2 ABSTRACT Sustainable Energy
Wind Belt Operation Deflection
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Research Project #1 Page 3 ANAYSIS Best Material Tested
Judgment Criteria
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Research Project #1 Page 4 DATA Group Data Chart Group Graph (Bar)
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Research Project #1 Page 5 MATERIALS
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Research Project #1 Page 6 PROCEDURES
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Old School!
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Athletic Footwear of Today
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What Material Scientists Do
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RESEARCH PROJECT #2 Sneaker Science
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RESEARCH PROJECT #2
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Energy Absorption
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Friction Testing
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Friction Testing
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Friction Testing
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Coefficient of Static Friction
Project Goals Coefficient of Static Friction
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Coefficient of Static Friction Coefficient of Sliding Friction
Project Goals Coefficient of Static Friction Coefficient of Sliding Friction
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Coefficient of Kinetic Friction
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Coefficient of Static Friction Coefficient of Sliding Friction
Project Goals Coefficient of Static Friction Coefficient of Sliding Friction Young’s Modulus
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Instrom
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Laser Lever
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Laser Lever As weight is added to the piston (stress),
the reflected laser beam measures the displacement (strain).
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