Smart And Modern Materials

Question 1

Graphene

Answer 1

Super-thin layer of graphite it is strong light and used un pencil leads

Question 2

Metal Foams

Answer 2

A metal containing air spaces. They are stiff,tough and light and used in car parts and bone implants

Question 3

Titanium

Answer 3

A corrosion resistant material with a high strength to weight ratio. Used in aerospace,ships and armour

Question 4

Liquid Crystal Display (LCD)

Answer 4

Are flat screen displays that are thin,lightweight and energy efficient. Used in TVs

Question 5

Coated Metals

Answer 5

A metal coated with a material to alter it’s properties. Used in galvanisation of iron and steel and zinc and electroplating

Question 6

Nanomaterials

Answer 6

A material that consists of nanoscale dimensions. Used in Carbon nanotubes.

Question 7

Shape memory alloy

Answer 7

Are alloys that remeber their original shape. They return to the original shape when exposed to high temperatures. Used in glasses

Question 8

Photochromic pigments

Answer 8

Materials that can change colour reversibly in response to light. Used in photochromic ink and spectacle lenses

Question 9

Thermochromic pigments

Answer 9

Are materials that change colour in response to temperature. Used in baby spoons and novelty mugs

Question 10

Composites

Answer 10

A material made up of a combination of 2 or more materials. Eg Glass reinforced plastic or carbon fibre reinforced plastic

Question 11

Micro encapsulation

Answer 11

Where tiny droplets of chemicals are coated in shells called microcapsules and embedded in microfibre fabric. Used in percume of scented lingerie

Question 12

Kevlar

Answer 12

A synthetic fibre that can be woven into a strong,resistant to abrasion fabric. Used in bulletproof vests and tyres

Question 13

Conductive fibres

Answer 13

Are fibres which conduct electricity. Used in integrated electronic clothing