1.12 Modern Materials

Question 1

Define modern materials

Answer 1

Materials that are developed through the invention of new improved process

Question 2

State feature of kevlar

Answer 2

Aramid fibers with high cut and heat resistant properties

Question 3

State two uses of kevlar

Answer 3

Body armour
Cut-proof gloves and aprons
Aerospace applications,
Surfboard components
Puncture resistant bicycle tyres

Question 4

State features of precious metal clay (PMC)

Answer 4

Clay consistency material made up of line metal particles.
Easily mouldable
Easy to shape and form
Sets hard once fired with a kiln or butane torch
Inexpensive compared to solid metals such as sliver

Question 5

State two uses of precious metal clay (PMC)

Answer 5

Jewellery
Decorative items
Small sculptures
Fobs

Question 6

State features of high-density modelling foam

Answer 6

Polyurethane closed-cell foam blocks or sheets

Lightweight
Easy to work using traditional woodworking tools
CNC miller/router
Sands easily to allow intricate shapes and forms to be created

Question 7

State two uses of high-density modelling foam

Answer 7

3D modelling
Prototypes

Question 8

State features of polymorph

Answer 8

Granules that becomes mouldable at about 60°C

Can be heated in water or with a hair dryer
Solidifies at room temperature

Question 9

State two uses of polymorph

Answer 9

Modelling
Shaping ergonomic handles
Prototype mechanical parts