Modern Materials Flashcards
1
Q
What are modern materials?
A
New Materials developed to have properties that are useful when designing and making products
2
Q
Graphene
A
Developed in 2004 Properties: • super capacitate (stores electrical energy) • electroconductive • biodegradable • 200 times stronger than steel • can take any shape • ultra-lightweight • thinnest material ever created
3
Q
Metal foams
A
Developed in 2011 Like a metal sponge in texture and construction Passing gas through liquid metal Properties: • strong • lightweight • thermally conductive • very porous • good sound absorption • excellent energy absorption
4
Q
Titanium
A
Versatile bass metal Usually alloyed with other metals Easily polished to a mirror finish Unreactive High strength to weight ratio Easily formed and welded Hypoallergenic Used for: Orthopaedic implants - hip replacements Aircrafts, spacecrafts and sports car parts
5
Q
Coated metals
A
Anodised aluminium - aluminium with thick oxide layer • can be coloured • used as a surface to paint on Nickel plated steel • electrolysis • corrosion resistant and aesthetic Polymer coated aluminium • dip coating or powder coating • polythene used to coat products • dishwasher racks and tool handles
6
Q
Liquid crystal display (LCD)
A
Laminated material of two layers of glass
Voltage applied let’s light through
Colour LCD screens use RGB pixels to mix colours required
LCD have low power consumption - battery operated products
• digital watches and TVs
7
Q
Nanomaterials
A
Materials which have parts less than 100 nanometres in size
Carbon nanotubes, fullerene and quantum dots (improve conductivity)
Atomic or molecular scale
Used in sports materials/equipment to add strength without adding weight
Used in socks due to antibacterial properties
