Gadolinium Smart Cord – Smart Material

Product Description

Gadolinium smart cord contains particles of gadolinium embedded in a polythene extrusion, which also contains a thermochromic dye as a useful visual marker of the transition point. If the (normally red) cord is floated on cold water it will jump up and adhere to a small neodymium magnet. If floated on hot water the cord loses its colour and is no longer susceptible to magnetic attraction – i.e. when the cord is red the embedded gadolinium is ferromagnetic and when colourless paramagnetic.