New Materials

Question 1

What are modern materials?

Answer 1

discovered in the last century

Question 2

What is titanium?

Answer 2

highest strength to weight ratio
corrosion resistant
hip replacement
bike frames

Question 3

What is PMC (precious metal clay)?

Answer 3

shaped by hands or in mould
mould is fired (heated), water evaporates and burns away excess clay/binder, turned into metal by sintering metal powder together
making jewelry

Question 4

What is metal foam?

Answer 4

strength to weight ratio
impact resistant
crumple zone of cars

Question 5

What is CFR (carbon reinforced plastic)?
What is GRP (glass reinforced plastic)?

Answer 5

tear resistant
strength to weight
flexible
CFR:
mountain bikes, formula 1 cars
GRP = cheaper = more common:
instrument cases, caravan, canoe

Question 6

What is kelvar?

Answer 6

textile
strength to weight ratio
v hard to tear
tough
- much cheaper but similar to carbon fibre
body armour, police bulletproof vest
inside of tires to prevent puncture
built up with resin for canoes/helmets