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 tryes

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