Thursday, June 23, 2011

Naked Capitalism Link of the Day

Today's link: University of Minnesota engineering researchers discover source for generating 'green' energy, at e! Science News:
To create the material, the research team combined elements at the atomic level to create a new multiferroic alloy, Ni45Co5Mn40Sn10. Multiferroic materials combine unusual elastic, magnetic and electric properties. The alloy Ni45Co5Mn40Sn10 achieves multiferroism by undergoing a highly reversible phase transformation where one solid turns into another solid. During this phase transformation the alloy undergoes changes in its magnetic properties that are exploited in the energy conversion device.
During a small-scale demonstration in a University of Minnesota lab, the new material created by the researchers begins as a non-magnetic material, then suddenly becomes strongly magnetic when the temperature is raised a small amount. When this happens, the material absorbs heat and spontaneously produces electricity in a surrounding coil. Some of this heat energy is lost in a process called hysteresis. A critical discovery of the team is a systematic way to minimize hysteresis in phase transformations. The team's research was recently published in the first issue of the new scientific journal Advanced Energy Materials.
 Very interesting properties.  So an allow of nickel, cobalt manganese and tin can turn heat to electricity.  It almost sounds like John Galt's static electricity generator, except this is research done at a state university.  I doubt that this is the solution to all our problems, but it is pretty amazing.

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