1.7 Smart/modern materials Flashcards
What is a smart material
physical properties change due to change in environment
What is a modern material
developed through invention of new/improved processes
How are thermo-ceramics created
metal powder place in mould/die
high pressure forces bondage
hard and stable
What are thermo-ceramics used in
turbine blades
turbo charge
tips of cutting tools
What does shape memory alloy do
change shape in response to change in temperature or electrical input
What are applications of SMA
nitinol wire in braces
self closing windows, aeroplane wing flaps
What is reactive glass
glass reacts to change in degrees by changing tint
hotter it gets the darker the tint
What are the uses of reactive glass
glass roofing, windows
What does an LCD do
change colour when voltage is applied
cell turns from light to dark
What are the uses of Liquid crystal displays
digital clocks and watches
calculator displays
What does photochromic material do
change colour with light intensity
What are the uses of photochromic material
welding goggles
sunglass lenses
What does thermochromic material do
change colour in response to temp change
What are the uses of thermochromic materials
room thermometers
mugs
bath water thermometer
What does Quantum tunnelling composite do
insulating rubber with tiny metal particles
apply pressure and material becomes conductor
What are the uses of Quantum tunneling composite
touch screen
pressure sensor
speed controllers on power tools
