Sunday, Oct 04th

Last update05:26:24 AM GMT

You are here News Science New shape-shifting metals discovered

New shape-shifting metals discovered

memory metalA new shape-changing metal crystal is reported in the journal Nature, by scientists at University of Minnesota. It is the prototype of a new family of smart materials that could be used in applications ranging from space vehicles to electronics to jet engines.

Called a "martensite", the crystal has two different arrangements of atoms, switching seamlessly between them. It can change shape tens of thousands of times when heated and cooled without degrading, unlike existing technology.

Currently, martensite metals are made of an alloyed mixture of nickel and titanium.

They have the remarkable ability to "remember" their shape and even after being bent will return to their original form. For this, they are called "shape memory" metals.

They have been used in spectacle frames and brassiere wires, but also in surgery as frameworks for shaping healing bones, and as "stents" for holding heart arteries open.

Martensite metals change shape when heated or cooled through a certain temperature, when the atoms that make up their structure rearrange themselves in a sudden transformation.


Most Recent Related Stories...

Farmer digs up woolly mammoth bones in Michigan soy field

Farmer digs up woolly mammothA farmer near Chelsea made a startling discovery Monday night: bones of a woolly mammoth possibly...

Supermassive black hole bigger than scientists thought was possible

giant black holeAstronomers in England have discovered a supermassive black hole many times larger than should be possible.In...

Nasa scientists find evidence of flowing water on Mars

Water on MarsLiquid water runs down canyons and crater walls over the summer months on Mars, according to...

Electron transport between species discovered in deep-sea research

Electrons transfer between speiciesResearchers at the California Institute of Technology have discovered two microbial species capable of sharing the...
America's # 1 Enemy
Tee Shirt
& Help Support!
TVNL Tee Shirt
Conserve our Planet
& Help Support!
Get your 9/11 & Media
Deception Dollars
& Help Support!
The Loaded Deck
The First & the Best!
The Media & Bush Admin Exposed!