Transcript Picture Quiz - D&T Within Schools

Duration
3:43
© D&T Within Schools 2014
07/07/2015
SMART MATERIALS
© D&T Within Schools 2014
07/07/2015
Smart Materials are materials that have
properties that can be changed by
external stimuli, like temperature, light,
moisture, electric or magnetic fields
and stress or force
© D&T Within Schools 2014
07/07/2015
Thermochromic materials
Liquid crystals that can be used as thermometers
because they change colour at specific temperatures.
They can also be used to tell when a liquid is at a
precise temperature, such as in kettles and irons.
Baby bottles and drinks mugs
Thermochromic paints change colour at different
temperatures
© D&T Within Schools 2014
07/07/2015
Photochromic glass, polycarbonate and plastics
will go from clear to dark when subjected to
ultraviolet (UV) rays
Very good for sunglasses used for driving, flying etc.
Could also be used on office windows
© D&T Within Schools 2014
07/07/2015
Shape memory alloys
Return to their original shape when put into hot
water.
So a spring that had become distorted could be
returned to its original shape simply by placing it in
a jug of hot water.
This could be a great material to make glasses
frames from. If you accidentally sat on them just
pop them into hot water and they would go back
to their original shape.
© D&T Within Schools 2014
07/07/2015
Polymorph
A thermoplastic that comes in granular form and
can be melted together in hot water 60oC
The plastic goes from white coloured granules to
transparent and can be easily moulded by hand
or cut with scissors
As it cools it becomes tougher and goes back to
its original white colour
© D&T Within Schools 2014
07/07/2015
Conductive thread
allows gloves to be worn while using an i-phone or
other touch screen device
It also means you can have dynamic LEDs on your
garments not just plain boring fabrics
© D&T Within Schools 2014
07/07/2015
© D&T Within Schools 2014
07/07/2015