Smart Materials and Composites

Give an example of a composite material

• Titanium

• Nano materials

• Carbon fibre

• Stainless Steel

What is the definition of a composite?

• Composites are when you weld two or more metals together to form a new type of metal.

• Composites are a combination of two or more materials that are bonded together to improve their mechanical or physical properties.

• Composites are when you take 2 or more metals and fuse them through melting.

• Composites are when you take 2 or more matrix and mix them to create a new material.

What is the matrix used to join carbon fibers?

• PVA

• Epoxy resin

• Cyanoacrylate

• Urea formaldehyde

A composite material is made of 

• A single material
• Two or more separate materials
• Two or more chemically combined materials
• None of these

A composite material has:

• The same functionality as its components
• Lower functionality than its components
• Higher functionality than its components
• None of these

Composites always have at least a ______ and a _______

• structure and tensile strength

• matrix and structure

• tensile strength and reinforcement

• matrix and reinforcement

What is a smart material?

• A material that does not display a physical change in response to an external stimuli.

• A material that display’s a physical change in response to an external stimuli.

• A material that display’s a continuous physical changing state in response to an external stimuli.

• A material that display’s psychological changes in response to an external stimuli.

What is the smart material SMA?

• Shape Memory Aluminum

• Shape Memory Araldite

• Shape Memory Alloy

• Shape Memory Acrylic

What are thermochromic inks?

• They change colour in response to changes in temperature

• They change colour in response to changes in light

• They change colour in response to changes in moisture

• They change colour in response to changes in weight

What is polymorph?

• A material that can be reshaped once.

• A material that can't be reshaped.

• A material that can be shaped and reshaped any number of times.

• A material that can be reshaped twice.