Smart + Modern Materials Properties

Question 1

SMAs (nitinol)

Answer 1

Changes shape in a response to a change in temperature of electrical input.

Question 2

Thermochromic pigment

Answer 2

Changes colour in response to temperature change.

Question 3

Phosphorescent pigment

Answer 3

Absorbs light energy during the day and re-emits the light energy when it is dark.

Question 4

Photochromic pigment

Answer 4

Changes colour with light intensity

Question 5

Electroluminescent wire

Answer 5

Thin copper wire coated in a phosphorescent material which glows in response to an alternating current.

Question 6

Piezoelectric material

Answer 6

Gives of a small electrical charge when deformed. Increases in size (up to 4%) when an electrical current is passed through it.

Question 7

Kevlar

Answer 7

Aramid fibres with high cut and heat resistance.

Question 8

Precious Metal Clay (PMC)

Answer 8

Clay consistency material made up of fine metal particles. Works like ceramic clay, easily mouldable, easy to shape and form, sets hard once fired in a kiln or butane torch. Inexpensive compared to solid metals such as silver.

Question 9

High density modelling foam

Answer 9

Polyurethane closed cell form blocks or sheets. Lightweight, easy to work using traditional tools, CNC mills/routers, sands easy to allow intricate shaped and forms to be created.

Question 10

Polymorph

Answer 10

Granules which become mouldable at about 60°C. Can be heated in water or with a hair dryer. Solidifies at room temperature. Also available in liquid form;liquid at room temperature and solidifies at 2°C.