Smart & New Materials Flashcards

1
Q

3 examples of smart materials

A

Shape memory alloys
Thermochromic pigments
Piezoelectric devices

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2
Q

Examples of combined materials

A

Alloys

Fabrics (polyester cotton blends)

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3
Q

Examples of composite materials

A

MDF

Steel reinforced concrete

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4
Q

Why is combining used in materials

A

Numerous metals make a lightweight strong material

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5
Q

Why is compositing materials used

A

Provides strength and reinforces materials

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6
Q

3 examples of composite materials

A

Polymer Matrix Composites (PMCs)
Metal Matrix Composites (MMCs)
Ceramic Matrix Composites

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7
Q

3 examples of modern materials

A

Liquid crystal displays
Carbon fibre / Kevlar
Engineering timbers

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8
Q

What is a smart material (2)

A

Materials that respond to external stimuli (e.g. Stress, temperature, electricity)
Change their properties

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9
Q

What are modern materials (2)

A

Made using new/modern processes

Improve on existing materials

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10
Q

Example of a shape memory alloy

A

Nitinol (Nickel and Titanium)

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11
Q

Piezoelectric materials (2)

A

React to an electrical charge

E.g. Stamp to light up shoes

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12
Q

Thermochromic pigments (3)

A

Change colour in response to changes in heat
Cookware, kettles, baby food containers
Prevents accidents and injury

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