New alloy converts thermal energy directly into electrical energy

A new type of alloy material is initially a non-magnetic alloy, which can suddenly become a ferromagnetic alloy by simply heating the copper sheet below it.

Researchers at the University of Minnesota in the United States have announced that a new alloy with unique properties can convert heat energy directly into electrical energy. This alloy of nickel, cobalt, manganese, and tin can be either magnetic or ferromagnetic, and it all depends on its temperature.

Alloy materials may have both magnetic and ferroelectric properties. Ferroelectricity is also called permanent electromagnetic. There are few materials with these two attributes.

According to a press release issued by the University of Minnesota, as the temperature changes, a reversible phase change occurs for this new alloy (Ni45Co5M n40Sn10), that is, from one solid to another solid. Specifically, the alloy changes from a non-magnetic alloy to a ferromagnetic alloy, and this phenomenon occurs only if the temperature is raised slightly.

According to researchers led by aerospace engineering professor Richard James, if the heated alloy is placed near a permanent magnet, such as a rare earth magnet

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