TV News LIES

Saturday, Feb 13th

Last update05:20:13 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.

More...


Most Recent Related Stories...


Einstein a-go-go! Scientists rejoice as gravitational waves detected

Gravitational wave detectedIn a landmark discorvery, ripples in space and time first hypothesized by physicist Albert Einstein a...

Engineer who warned of 1986 Challenger disaster still racked with guilt, three decades on

Engineer still feels guilty over unheeded Challenger warningThe entire nation was stunned into silence watching the Space Shuttle Challenger abruptly blow apart 73...

Hundreds of galaxies found hiding behind the Milky Way

Galaxies found behind Milky WayAstronomers in Australia have confirmed the discovery of hundreds of galaxies hidden by the Milky Way...

The end is nearer: 'Doomsday Clock' to change to show destruction is at hand

Doomsday ClockScientists will announce how close humanity is to extinction Tuesday by updating the minute hand on...
 
America's # 1 Enemy
Tee Shirt
& Help Support TvNewsLIES.org!
TVNL Tee Shirt
 
TVNL TOTE BAG
Conserve our Planet
& Help Support TvNewsLIES.org!
 
Get your 9/11 & Media
Deception Dollars
& Help Support TvNewsLIES.org!
 
The Loaded Deck
The First & the Best!
The Media & Bush Admin Exposed!