Modern Materials

Question 1

modern materials

Answer 1

a material developed through the invention of new or improved processes.

eg as a result of man-made materials or human invention.

no natural materials

Question 2

kevlar

Answer 2

• Aromatic Polyamide (woven)
• Artificial fibre that has tremendous toughness and strength.
• strong and light.
• used in bullet proof vests, puncture resistant tyres.

Question 3

precious metal clay

Answer 3

• microscopical particles of gold, silver, and other metals.
• shaped into jewellery.
• heated until the particles fuse and the binding material (clay) is burnt off.
• 10 mins heat at 700oc

Question 4

nanometals

Answer 4

• particles in the atomic and molecular range.
• used in sunscreen and cosmetics.
• investigating ways of making more advanced ‘nanoelectric’
  devices.

Question 5

Glulam

Answer 5

• several pieces of timber glued together
• strong, composite components used in buildings bridges and other structures
• careful laminating allows the natural defects in timber to be almost eliminated
• better strength to weight ratio than steel
• can be shaped easily with low energy
• sustainable
• cross laminated timber (CLT), sheet based, strength in both directions, can be used for more imaginative designs