Creating electricity from heat
The Flash 9.0.0 plugin or higher is required to view content on this page, but was not detected on your browser.
A new alloy is able to convert heat directly into electricity.
The alloy, a multiferroic composite of nickel, cobalt, manganese and tin, can quickly and dramatically change from non-magnetic to extremely magnetic when heated only a small amount. When the alloy is located near a rare- earth magnet, a current is produced in a surrounding coil.
The new allow could have applications in harvesting waste heat from car exhausts, particularly since many hybrid batteries already have rare-earth magnets installed as a requirement of the system.